The game goes in cycles. I'll admit the Jedi have never hit as hard as the rebels do (which imo is a little too hard) but the Sith were pretty weak too before this recent rework. But even after the rework that happened I think Sith should be looked at again just damage output wise. I'm actually convinced that they don't want to balance the game to keep everyone buying new characters, instead of letting players settle with their favorite characters and just enjoy the game. But anyway, I'm sure the jedi's time will come when they get back around to it.