This. After what I have seen and read over the last year I trust the community's idea of balance less and less each time. With that said there were a few changes I am glad got rolled back and never seen the light of day, during Closed beta. So not even the devs have a perfect idea of balance.
You need to take each powerset at a time for considering balance. This idea that there is this perfect idea of balance that is just known, is a fallacy.