Anyway, I think some of these things have added a lot to my understanding of the game, so I've enjoyed exploring them. But it is always changing, and things like Michael Caley's xG shot maps on a per game basis, though fun to look at, can definitely be a little misleading and not as indicative of the match as he seems to often express.
Teams are definitely using these stats though, xG or something similar, so it makes sense to me to try to get into them a little more, but if you don't dig them, it's cool. I just think it's kind of silly to write them off.
The things we see in the public seem sound for analyzing attacking stuff, especially. It will be interesting to me to see how the metrics evolve for analyzing other postions. The keeper things coming out look interesting, and the ball progressing/advancement stuff is cool, but I'm less confident in that.
That being said, I just like to watch fun, crazy matches, and like fun, crazy players more than anything.