In the video I linked, that single player has more experience and knowledge about mesmer than all anet devs combined. So I doubt that they know better. And if you recently came back and didn't follow recent updates just check most recent big patch with the abysmal changes that missed on every possible level.
The only thing I agree is that I would rather play fun than balanced game, but these changes don't make either fun or balanced experience, unless making build from op to dead is balanced in anyones eyes.