From the comments I was expecting a less well reasoned post. However, while I don't agree with some of his rationale, generally they seem reasonable.

The author isn't even condemning all AI generated MRs. Only ones meeting a few conditions.

Maybe the decent comments hadn't had time to bubble upwards yet. HN is a relatively higher quality online forum but... I still only expect half the commenters to have read the full post.

I'm curious to hear what rationale you partly disagree with.