I can't believe there are people that are actually against what the OP is proposing. Yes, we should very much overpower the lower level dungeons. If I am taking my time out to help people, I have earned that right to use those abilities. The lower level dungeons are insanely boring. There is absolutely no reason why we shouldn't have all of our abilities when going into these instances. The fact that level sync exists in its current state keeps me out of lower level dungeons.