All classes should have comparable DPS. We have about as many DPS Souls as Warriors ; ). Should Warrior DPS = Cleric DPS? I should hope not! Or wait, I should hope so!
The Classes are supposed to be just flavor. Different ways to do the same thing, different mechanics or graphics or whatever. Now, if Trion made the Cleric Class and said Here is the BEST Healers who can do OK DPS and Tanking, then maybe I would have rolled something different.
They didn't, its not their design for 1 Archetype to be king of ANYTHING. That is this game, if you don't like it, petition for them to change it or go make your own game.
Now, NONE of the above has ANYTHING to do with if we are currently behind or not.