[jmull]

Exactly.

How much is coding actually the bottleneck to successful software development?

It varies from project to project. Probably in a green field it starts out pretty high but drops quite a bit for mature projects.

(BTW, "mature" == "successful", for the most part, since unsuccessful projects tend to get dropped.)

Not that I'm not AI-denier. These are great tools. But let's not just swallow the hype we're being fed.