It's no one's fault but your own if you choose to be a pure Jedi. Further, that last thing can be countered by Speed, I've been diced up enough by that. It's not a problem with gunners being overpowered, it's a problem of Saber Throw and so on not being implemented yet, as the easy answer to most of those besides Speed is 'Saber Throw'. Implement Throw before you do anything else, because frankly if Sushi refuses to adapt from pure Jedi it's his own problem... after all, gunners with Absorb are impure Jedi.
As is, I agree that passive Absorb should cost more. I'm against requiring it to be activated, though. Just either make it cost more or simply make it drain some FP if you absorb.