This makes no sense. AI is much better suited to writing tests and all the other busywork around preparing software for release. And let's say something doesn

This makes no sense. AI is much better suited to writing tests and all the other busywork around preparing software for release. And let's say something doesn't work correctly - who's going to go in and wade through AI's code to find and fix the problem? Another AI could assist no doubt, but you really need someone who can grasp software innards.