The future of everyone being able to view online video (e.g. Netflix/Hulu/BBC) without a plugin is not getting anywhere closer.
Regarding YouTube, I do most of my YouTubing on iOS devices, and it's very rare to find a video that doesn't work, so the non-plugin support is good. Why it doesn't work in your browser, I couldn't say, but at this point I suspect it's more about your setup than YouTube not supporting it at all.
So you're right.