Yeah add some damage would be nice...

A crippling blow that knocks the target out of his stance....

Instead what we currently have is... a tap on the shoulder, a kiss on the cheek and the target agrees to change stances for you.

20end plus a message would make me very happy.

I'd take that over it causing a debuff considering that adding a debuff would "likely" raise back up the endurance cost and the few times where you need to use it you tend to have to spam it like crazy.  Lower endurance makes it more functional towards its intended purpose.

Adding a debuff will give it more global utility granted, but on the whole I'd rather keep it focused.  Just my feelings on it of course. 

I see nothing wrong with pushing hands in its current state aside from it using 40 endurance ( about double what ranger's stance push does ) and it also seems to be significantly weaker than rangers stance push... Typically takes about twice and many pushes to yield the same result as a ranger.... twice as many pushes with double the endurance cost really makes rangers the viable choice for a stance pusher...