> Wait but under that assumption - LLMs being good enough - wouldn't the maintainer also be able to leverage LLMs to speed up the review?
This assumes that AI capable of writing passable code is also capable of a passable review. It also assumes that you save any time by trusting that review, if it missed something wrong then it's often actually more effort to go back and fix than it would've been to just read it yourself the first time.
A couple weeks ago someone on my team tried using the experimental "vibe-lint" that someone else had added to our CI system and the results were hilariously bad. It left 10 plausible sounding review comments, but was anywhere from subtly to hilariously wrong about what's going on in 9/10 of them. If a human were leaving comments of that quality consistently they certainly wouldn't receive maintainer privileges here until they improved _significantly_.
This assumes that AI capable of writing passable code is also capable of a passable review. It also assumes that you save any time by trusting that review, if it missed something wrong then it's often actually more effort to go back and fix than it would've been to just read it yourself the first time.