This doesn't seem applicable in most contexts. Yes, when I'm coding for fun or purely for learning the finished product is less relevant... but I'd guess the vast majority of code that is written is for a business that _only_ cares about the product. Code is an implementation detail.
If (and this is a _big_ if) AI-based coding can increase developer velocity even as little as 50%, no sane business is going to let their engineers ignore it just because it's not as fun as artisanal code.