I don't know a huge amount about it, but so far I can't see anything to dislike. Seems to combine elements of strength, flexibility, balance, endurance, and cardiovascular fitness.
Some of the higher level people are doing very impressive stuff. A 60kg woman overhead squatting 80kg is formidably strong, in my view.
I agree with RGRthat - it's just tribalism.
230 strict press @ 220; bodyweight+187 X 4 dips @ 180; 403 front squat @ 210; 10 000 push-ups.
Ignoring irrelevant credentials since I was 17.