Chi Wave has always had a 8 second cooldown since from the last build. I've noticed that I couldn't even use Chi Wave for 2 seconds after 6 seconds.
Anyway, with that glyph you could potentially stun the mob 2 to 3 times for 2-3 seconds, depending if you bounce Chi Wave on a mob or ally first... and Chi Wave has a 8 second cooldown. That's pretty potent.
I have a feeling this glyph probably won't pass. =/