At least with physical works (for now, anyway), the methods the artisans employ leave tell-tale signs attesting to the manner of construction, so that someone at least has the choice of going the "hand made" route, and others, even lay people without special tooling, can tell that it indeed was hand made.

Fully AI generated code has similar artifacts. You can spot them pretty easily after a bit. Of course it doesn't really matter for the business goals, as long as it works correctly. Just like 99% of people don't care if their clothing was machine made vs. handmade. It's going to be a tiny minority that care about handmade software.