At last Chris has spoken. This comes froma recent TSL afterthoughts interview with EGM :
EGM : Could you explain why some of the Force powers are so powerful? Even a little too powerful?
Chris Avellone : [We] had to remove the level cap on some of the Force powers, because what we noticed is that when you allow the player to go above level 20, with the autobalancing, suddenly powers that were once very cool, if they had a ceiling, they weren't as effective at the high levels because there's only a certain amount of damage they could do. So what we decided to do is have the powers try to scale up to character level. However, at the end the amount of damage you'e dishing out is just insane. So yeah, the balancing there wasn't able to keep up with some of the Force powers. We decided if we were going to err on the side of too hard or too easy, it'd be more tolerable to err on the side of ease.
Mike Gallo : Yeah, and when you're that high a level, we really want the player to feel like they're badass, especially if they're dark side. We wanted them to be able to go wipe out rooms.