QP was a bit over the top, yes, but basically it was one of the very few things that made you feel like a monk (at least like i think monks should feel like, Kungfu-killstuffwithhandsfast-like). It needed some decent investment (to land it safely in highend EE content) and as mentioned before its not only DC that matters (compared to casters) but the ability and risk to land it. So, some slight downgrading, either dc (~5-10) or just increase the Ki cost and/or CD (50 ki at 15 secs) and its mostly fine. You give up some DPS so its reasonable that you can land the ability you build for when you want to, and not after you missed on enough random mobs you dont care about.
In the end another reason to not play a monk as a monk but as Monkcher, Monxer, Sosnk, Stank or whatever Kensaisplash you want to grab ^^. Those builds are great and fun (and mostly OP with BF ^^), but, bring the class back to what it should be for, a different playing-experience.