At least they tried speaking the language. It's not a piece of cake to learn Nihongo. As long as they would be comprehensible and would do the job well (which they'll be applying for) then it's great!
It's easy to mock them, but they are trying teir best to understand and speaking your language in hope to earn for a living. Either give a constructive feedback if you are native/have better understanding in 日本語 , or just be kind. It costs nothing to be kind.