LOL how does the AI keep track of all the places it needs to update once you make a logic change ? I have no idea what you're doing but almost nothing I do is basic CRUD - there's always logic/constraints around data flow and processes built on top.

People didn't move away from PHP3 style of code because it's a natural human tendency - they moved away because it was impossible to maintain that kind of code at scale. AI does nothing to address that and is in fact incredibly bad at it because it's super inconsistent, it's not even copy paste at that point - it's the "whatever flavor of solution LLM chose in this instance".

I don't understand what's your background to think that this kind of thing scales ?