You're quite right that the quality of the code is all that matters in a PR. My point is more historical.

AI is a very new tool, and as such the quality of the code it produces depends both on the quality of the tool, and how you've wielded it.

I want to be able to track how well I've been using the tool, to see what techniques produce better results, to see if I'm getting better. There's a lot more to AI coding than just the prompts, as we're quickly discovering.