How do you know the effort that went into the message? Somebody with writing challenges may have written the whole thing up and used ai assistance to help get a better outcome. They may have proof-read and revised the generated message. You sound very judgmental.
And you sound very ableist. Why should we expect people who may have a cognitive disability of some kind to cloak that with technology, rather than us giving them the grace to communicate how they like on their terms?
Because often times you know the person behind the message. We don't existing in a vacumm and that will shape your reaction. So yes, I will give more leeway to a co-worker ESL leaning on AI than I will a director who is trying to give me a sloppy schedule that affects my navigation in the company.