I was agreeing! You said it yourself: "Vibe writing vs AI assisted writing".
The people complaining are talking about vibe-writing or heavily-AI-assisted writing.
EDIT: My point is, most people taking the "anti-AI" stance here wouldn't have a problem with Grammarly or AI to double-check spelling. It's a gradient.
EDIT 2: I wrote a lot of stuff without double-checking. Just editing to clarify what I mean. :D