Is this a 1-person dev team? Because on teams, one person has to submit a PR and then someone else on the team has to code review it, right? So then you're doubling the review time of the code. If you wrote the code yourself, you would already know that it works, then you submit the PR, and then someone else reviews the code one time, not twice. And typically reading and understanding code you did not write takes longer than writing the code yourself. It does not seem like "AI" coding is really saving anyone any time, and is probably wasting more time than it saves.

It entirely matters. It matters because as humans, we can only keep so much context in mind. That means that if you are looking at 100-200 lines at a time, you can think about the architecture. You can modify the code, whether it's fixing or refactoring. It means that it can only get too far off base.

It also means that sometimes, you say "this is bad code," refine the prompt, and run it again.

Yes, it means that you as a code reviewer is a bottleneck. It means that you are limited to the productivity gain that can exist. We are talking 10-15% productivity gains per person in mature code bases, not some magic replacement.

But if you're worried about reviewing code, maybe we shouldn't allow junior programmers to contribute to codebases either. After all, you might make a mistake in reviewing that.