So…wait. Sunburst knew that the window was open for the last day and a half, didn’t close it, and they’re just blaming Trixie? It was his responsibility, too.

It's been hinting since the beginning. If you look into Twilight's eyes once Sunburst and the Pillars showed up and heard about the virus, you can see Twilight's eyes turn a certain orange color.

So all this started because of a dead corpse of an animal that caused the flower to turn ponies into zombies?

Ok but how was this Trixie's fault tho? She didn’t know that the mosquitos could do that. She followed the quarantine accordingly. They didn't have any rules to not open the windows. Besides, there were other ponies there and the windows was open for a day and a half and no one else who saw it bothered to close it.

Why? They didn't say anything to Pinkie either. I mean, she practically asked to be bitten when she was supposed to be quiet. Even as we saw in the last episode, she was moving around freely with the medical devices and didn't mention anything about the bites she had.

2:40 Not even Judas was that treacherous, and while Trixie's actions caused that, it was unintentional; she didn't know that the infected blood would cause the death of the inhabitants of Ponyville. That was a failure of the quarantine measures, a mistake that could have happened to anyone, but oh well, with friends, so we'll wait.

Man poor Trixie, I feel bad for her, she didn't deserve that.

Also the hell's going on with Twilight? She's acting really strange in this

Rarity is so funny because like
Applejack: C'mon Applebloom!
Rainbow Dash: C'mon Scootaloo!
Rarity: Ugh, I need a day for myself! Then she just doesn't acknowledge Sweetie Belle at all and I find that weirdly funny for some reason 😂

I can't believe everyone blamed Trixie! How could she have known about the mosquitoes?! 😡

They have no right to blame Trixie! She had zero idea of infection it was just a accident! Plus, she was claustrophobic and wasn’t allowed to go outside

I see this is going the "Apple Sleep Experiment" route, where Twilight doesn't take accountability for her actions. Of course, she saw what happened to Trixie, so she knows what'll happen if she confesses.

This is kinda funny how Trixie and Twilight mistakes are parallel in a way cause they both did something by accident which caused a bunch of ponies to die and get sick because they didn't know the consequences for their actions. The only difference is that one is that Trixie mistakes is far less damaging, 2 people could've actually prevented this from even happening in the first place, and the overall lock down was flawed. Twilight on the other even though she didn't know it was her own fault and Sunburst initially she not only unintentionally cause more damge but when she did find out she would rather kill the person who's also at fault instead of telling the truth huh. It's gonna be funny once they find and Twilight is gonna be in the same situation as Trixie it's just gonna be WAY worse 😂.

Okay, here are some points I'd like to highlight:

1. Who would think of using a book about an ancient and supernatural practice that involves disturbing the eternal rest of someone who has passed on?

2. Seriously, blaming Trixie? Okay, the stress was constant and worsened when the entire population of Ponyville got sick, and Trixie in the series was very egocentric, and her past doesn't let her down, but come on, someone who clearly suffers from claustrophobia deserves extra care. And nobody knew the virus was transmitted through blood, but they previously ruled out airborne transmission, which is a very serious flaw in the quarantine. Many scenarios for its spread should be analyzed, and if it wasn't Trixie, it could have been anyone. Besides her, there were the Mane Six, the Crusaders, the Pillars, Celestia, Luna, Starlight, Sunbert, Flurry Heart (being a baby and not controlling her magic, she could have gone out), Spike, and the Guards. Literally anyone could have made that mistake. Incredibly, it would be just as cruel for someone to be reprimanded in the same way as Trixie was, or I'm afraid they wouldn't even be yelled at, and then they would be seen as a...  Error.

3. Seriously, they're calling Trixie selfish? Sunbert didn't close the window when he could, and he and Mage Meadowbrook seemed to give Pinkie free will despite her situation. Pinkie literally caused the infection herself, or she didn't even mention the mosquito bites. The rest of the Mane Six either left the castle to take care of their families or pets, leaving the others to their fate. Twilight and Sunbert caused this disaster, but Twilight tried to cover it up so she wouldn't look like the bad guy. Starlight literally stabbed Trixie emotionally by not defending her. They all look like hypocrites.

4. Does anyone think about the guards who stayed behind because of Twilight? They're going to get a huge scolding.

5. A mosquito bit Trixie, but that involves spoilers for those who don't know the story in this universe, but that was the worst part, like a domino effect.

6. This teaches us that when you're conducting an experiment, don't bring in necromancy or supernatural magical cultural sciences. And if you see...  If there's a lot of standing soil or a makeshift hole, don't be crazy or too rough, and just plant whatever you're doing in a personal pot you can get at the nearest garden center, as long as it's done safely. Clearly, that family seen in the background suffered the loss of that hamster, and Twilight and Sunbert didn't make sure it didn't do anything strange in the soil.

Calling Trixie selfish when it's obvious she might be claustrophobic, and then making her leave when it's clear she was bitten by a mosquito, but then leaving themselves without knowing if it's safe to go home after being in the Crystal Empire, or even about the mosquitoes themselves, leaving Twilight and the others to have to help Ponyville instead of helping, since after all, they and their neighbors saved them on multiple occasions. Double standards at their finest.

Nice reference to flaming Twilight that appeared once in the show

Twilight: I want to make singing flowers withouth magic

Sunburst: Neat! Let me use this book about NECROMANCY! That will totally help

....The heck? Man Those two really have no common sense. Also Twilight didnt kill sunburst because of her friendshps she just didnt want to admit this entire problem was her fault as well

Tweaklight Sparkle is at it again.

Twilight , you know , I hope the writers do an extra fitting punishment for you

If starlight saw this, she would definitely Crash out like Gohan or Broly. 😂

IM FLYING TO THE HEAVENS I LOVE THIS SERIES IS JUST SO GOOD