I like that arthur finally realised that his father murdered innocent children in his purge. Children sure are capable of learning but magic is supposed to be this advanced thing with years of study yet uther killed children who didnt have the chance to learn meaning they were born with their gifts. = they had no choice in it
I hate that Arthur didnโt change anything when he became king, he kept executing magic users. By the way, Iโm sure Arthur knows full well, that most of the people his father and him had executed, were born with magic. As much as you might like Arthur, he was a questionable person himself, maybe not on Utherโs level, but still very questionable.