Purification: Get rid of it. On a conceptual/aesthetic side of things I like it but its entirely unnecessary while we have invigorate.
My fix: Replace this with the monk version of the thundercloud trait. Where we have a chance on GL stack to be able to use Tornado Kick for free without losing our current GL stacks.

With the Forbidden Chakra and Tornado Kick I like to think of it as if the expansion was Christmas and for x-mas SE gave the monk community these really cool umbrellas. They look awesome and we like them but we only ever get to use them when it rains while the rest of the classes got more practical things they can use often. But as Ive been playing this game Ive seen SE really watch the community and react to player feedback so Im confident we'll see some changes we can be satisfied with. Hope you liked my ideas though, square they are free to steal be my guest.