This is what makes the experience for me. You can tell someone "check out channel 12" and you'll both be watching the same thing just like we used to do.

I like UIs like this when just one thing is in the focus....I think few years ago here on HN someone did something like this but for Twitch; where you could switch back and forth between live streamers which had only 1 viewer. This format is definitely good for fast and easy discovery.