I don't think any other healer has a "pull ally towards you" ability in pvp so I don't think you can really compare in that regard. I also find the other healers lacking in their own right. The other healers don't get a free instant cast by casting the cheapest heal.
Deorbit isn't an oh shit button like Benediction. That is not where it shines. It is to be used to preempt or reset the stage.
Essentially Deorbit is the equivalent of Aura Blast or Fluid Aura. As it resets player positioning. Both of those don't have an effect when Concentration is active.
