You really cannot blame them. Especially when Universities partner with OpenAI and cut off all ways to contact advisors aside from text and email right before admissions.
As a probably not autistic person, email is one area where warmth is not wanted. Just get to the point, I have a dozen more to get through. And that's precisely why you shouldn't use AI to write email, AI rambles, I want 1-2 sentences, short phrases are fine.