I honestly say given the universe, its fine. For one, as humans lack many of the special powers or hax other races have its only fair they get something in the way of techniques. I personally have no problem with it and like it myself. Not to mention I can't talk since one of Karine's to be powers is tying in the potential thing I hinted at multiple times. I'm guessing its power up is sorta random/plot based then a straight hard multiplier.