Well, yea i would say that if your playing a class where one of thier most powerful and useful functions is healing, and you don't heal, your pretty ****ing dumb. If that is the goal, to not heal, play something else. Not making use of the class abilities of any class is a a poor choice.
I guess what im trying to tell you, is that playing a FvS who can't heal, is alot like a rogue who doesnt make use of evasion, or a caster who doesnt cast spells. It's weak.