Tech very quickly shifted to a industry of marketers instead of hackers. And with salesmen, you want to advertise as many features as possible, not talk about how quality one good crucial feature is.

This won't really stop until investors start judging on quality and not quantity. But a lot of those are thinking in finances, and the thought of removing their biggest cost center is too tempting to not go all in on. So they want to hear "we made this super fast with 2-3 people!" instead of "we optimized and scaled this up to handle 400% more workload with double the performance".