A pretty big part of the reason we didn't switch earlier is that most people—certainly most non-technical leaders, but also a lot of engineers—don't value correctness or security enough. We didn't have good alternatives until recently because we did not, collectively, invest in developing these alternatives.

One surprising thing is that, in the grand scheme of things, developing an alternative like Rust is not that expensive. It takes something like a small team a few years. Maybe a person-decade of effort to get to a viable point? Maybe two, whatever. The industry as a whole throws away orders of magnitude more engineering-years than that on vanity projects and internal dysfunction every year.

Of course, even once we have an alternative, the switching costs are high. And the barriers are far more social, organizational and political than they are technical. But even so, moving to alternatives incrementally has been viable for decades. And hey, if we include moves to garbage collected languages, we have been moving quite a bit... but we could have been moving more. It was only a matter of will and, upstream of that, cultural change.

So really, the problem isn't that people complain too much, it's that they don't complain enough :)