If your arguments were true, then more people would care about video - which they apparently don't, judging from the feedback on this forum. Or its just that perfect that we don't need to get any feedback on it.
There is a MAJOR logical flaw in your thinking. If a feature isn't worth using, because it doesn't work well enough to be useable, people just won't use it. If MC *only* supported video and not audio, people would be screaming for you to fix it. Because it's unusable for many people. Why? Because full screen mode puts a GIANT GREY RECTANGLE at the top of the screen and keeps one from being able to use the playback controls. That's not minor or "an edge case".
In recent builds the rectangle and the cursor disappear after a short time. This is good. But it all looks like a work in progress; which I guess it is. It makes me personally not want to use it because it's so clearly "broken".
Lest you think I'm bitching and complaining and demanding a fix... I am not. I don't use video support for MC and I didn't buy it for that reason. I bought MC for audio only. If it did video really well... I'd be really happy! I'd use it for video all the time. But if I had my choice, I'd rather have the audio bugs fixed first.
I'm only writing this to point out that people won't use stuff that doesn't work properly. ...and people who don't use a feature, don't complain about it.
Brian.