>Tools like this allow programmers to become more productive, which increases demand for the skills.

Well like everything in life I guess it depends? The only iron rule I can always safely assume is supply and demand.

But for programming especially on the web, it seems everyone has a tendency of making things more difficult than it should be, that inherent system complexity isn't going to be solved by ML.

So in terms of squeezing out absolute efficiency from system cost, I think we have a very very long way to go.