When you're looking only at the players with actual skill, its going to look like that. As far as potential, everything is balanced as it should be. Classes like Summoner or Scholar on the other hand have a very different balancing problem. You should not have to play near-flawlessly to be mediocre. You should not have to play flawlessly to stand out. Some classes are still clunky, over-punishing and just not that fun to play right now. Doesn't mean they need to be re-balanced or buffed or the other classes nerfed, they just need the kinks worked out so that they flow a little better and don't drop your dps to the bottom for a single mistake.

Yes, yes I know, git gud. I don't even play those classes anymore though and can point that out. I feel for them. I can die on my Bard and still put out respectable dps (I don't think I've ever been the worst performing dps in any savage I've run in SB) a summoner on the other hand is never going to catch up if they die. Just doesn't seem balanced. And it isn't like their dps would soar over mine if they didn't die, it'd still be average level for a somewhat utility enhanced class.