> I don't see why his involvement, explaining to his team how exactly to build a piece, is any different from a developer explaining to an LLM
Because everyone under him knows that a mistake big enough is a quick way to unemployment or legal actions. So the whole team is pretty much aligned. A developer using an LLM may as well try to herd cats.
First, that's quite a sad view of incentives structures. Second, you can't be serious in thinking that "worker worried they might be fired" puts the person in charge closer to the "materials" and more "hands on" with the project.