I don't know why you have to qualify your sentence with "think carefully before you respond" it makes it seem like you're setting up some rhetoric trap... But I'll assume it's in good faith? Anyway...

I don't mind if a review is AI-assisted. I've always been a fan of the whole "human in the loop" concept in general. Maybe the AI helps them catch something they'd normally miss or gloss over. Everyone tends to have different priorities when reviewing PRs, and it's not like humans don't have lapses in judgement either (I'm not trying to anthropomorphise AI, but you know what I mean).

My stance is same about writing code. I honestly don't mind if the code was written `ed` on a linux-powered toaster from 2005 with 32x32 screen, or if they wrote it using Claude Code 9000.

At the end of the day, the person who's submitting the code (or signing off a review) is responsible for their actions.

So in a round-about way, to answer your question: I think AI as part of the review is fine. As impressive as their output can be sometimes be, it can be both impressively good and impressively bad. So no, only relying on AI for review is not enough.