They have only taken off for casuals, who don't know enough about the game, and don't understand what they're watching. They think it works like baseball, where analytics tell most of the story.
People that have played/coached/watched the game for years use them how they are supposed to be used. As a supplementary tool, that may or may not be helpful in confirming what you're seeing.
I don't know, I use them pretty regularly. I find they have three really good uses.
1) Casting a wide net to help bring attention to things you wouldn't otherwise see. If I'm tracking rookies, I don't have time to watch each game for hundreds of them, stats can highlight things that I missed so that I can double back and look at things a different way or pay attention to something else.
2) Track players long term. Once you have a good read of a player, you don't have to keep watching them game after game. If you know what the player is, there is no point watching them 60 times. By keeping track of the stats, you can see if things have changed. If a number suddenly spikes or drops, you check in at that point to see why by watching
3) To assess coaching/ strategy. If something looks like it's working but it's not, the eye test and the results don't always matchup. By using stats (and maps), you can point out deficiencies a lot quicker so that you can zero in on deeper tape of them.
I'd say they became my primary tool a long time ago. Even when I played, we used a form of simple analytics our coach called 'right spot mapping' where he would have one of the trainers time how long it took us to get back to where his scheme said we should be and how long we are able to maintain inside while in those positions. We'd get a ratio about every week or two. Between that and a few others (battle wons, insides lost, etc) our games got broken down into numbers a lot more than most people would expect.