I think the same could be said of developers. Or, maybe in both cases, it's the companies that don't know when to stop.
As a developer, and maybe more relevant here, a user of software, it's kind of surprising how development efforts often continue well past the point of shipping something useful. Now, I'm not arguing that this applies to every software product, or that people should stop at the bare minimum like "welp, we shipped v1, let's pack it up everyone."
But this underlying belief that things must be continually improved is very pervasive in software and even moreso in open source. ("Last commit was 6 months ago? This project is obviously dead!")
I don't know that anything can or should be done to "fix" this, but it's an interesting observation. Think about it next time there's an "upgrade" that breaks something or changes a workflow you liked. Why did that happen?