The biggest bottleneck in most organizations is not the production of said work, but the bureaucracy surrounding it. AI isn’t going to solve that. So it really doesn’t matter if AI makes programmers 20, 30, 40 percent faster, they will still be facing the same bottleneck at the end.
It's also frequently the same old bottleneck/problem that we already consciously decided to move away from. We used to produce big binders of specifications. Then a lot of us switched over to "agile", or a more flexible, JIT'd style where you iterate as you go, because surprise, you learn a lot as you go. This remains as true as ever, even with agent help.