Those gloves are a tad OP I agree, but that 0CD build he's running doesn't actually need them.
I've watched a different video of a monk with that helm (which IS needed I believe) and then just -CD% on legendaries. He was able to get to 0CD on BoH without the shrine effect. I believe the legendary should just increase the radius, and maybe a 10-15% CD reduction, MAYBE. I mean, a free to cast no CD huge nuke of a spell that also heals is OP.