I've seen it integrated around the league, early in the year(WAR/wOBA/wRC+, etc... must've pissed a lot of viewers off, I rarely hear what they say(broadcasters), it's an art, lol. It'll take time. Google TangoTiger, he has results as recently as this WS. Nerds love stats, industry doesn't.
I remember OPS up on the jumbotron about 5 years ago, and near s*** myself, it's always going to be far behind. As others have said ball fans that want to learn and get into the math will, I did.