If a person writes 100 lines of code there’s a (valid) assumption that someone thinks this 100 lines of code is worth writing. With AI it takes no effort to write 10,000 loc. Asking someone else to figure out if that code is worth merging just offloads the effort to someone else who didn’t ask for it.

It makes sense, because humans and AI write code different. Because humans aren't AI. The types of mistakes AI writes into code would never be done by a human.