I agree with you.

But there's also potential downsides to digging in and fixing the UI.

For instance: I've made a few simple boards with KiCAD. The first one was frustrating as hell and took forever, because my distro had helpfully installed the very latest version of KiCAD.

Meanwhile, the tutorials and videos were generally all about older versions. Which is fine, I guess, except way too many of them didn't even specify a version number.

So I (a complete newb) spent way too much time trying to find nonexistent UI widgets and being mystified that a given tutorial often seemed to be written by someone who was using different software entirely.

(The answer here is, of course, to have decent-enough official tutorials that stay in lock-step with software releases, so as to always get people started on the right page. But doing/enforcing that feels like work, and that's not usually what people want to feel when they volunteer to help write CAD software.)