Yeah I can see the nerf, I just can't see destroying it completely. Nerf the resolve issues and the problem goes mostly away, or nerf the stun so it breaks on damage...hell, do both if you have to. But making it caster only makes it a lot less desirable.
Also make it so people can't right click the bubble buff off, so it can't be abused as it is now.
But yeah, a point update that is now being held back as the first "expansion" and now costing us money is more of a principle thing to me. It's not like I can't afford $10, but it's just another hoop to make all the raiders jump through to continue raiding and stuff. I just can't forsee any good for the game coming from this.