> All of these are angles an AI reviewer can test for as well, and will (IME) mostly catch mistakes correctly.

No, none of today's AI would give you enough signal around "should this thing be built in the first place" nor if it's the correct solution on a high level.

They don't understand why you are doing what you are doing, and even if you explain it, they still don't actually understand the motivation and lots of other things.

You'll get them to do guesses and pretend they actually know how to prioritize and will tell you it makes lots of sense, whatever they come up with. But try following it blindly and you'll see where you end up.

This is why "one agent + one good developer" beats "thousands of agents working in a swarm" still today.