I am on the fence. I find this skill very useful when someone is running away from my DPSer and I want to stop them. I think it is great that priests finally have a skill like root, shieldbash, stinger, etc.
On the other hand, it is a nuisance that it can be spammed.
I say lets vote to add a CD to use the skill, like Shield Bash or Stinger has, but do not eliminate it completely.