Do NOT take what happened in KOTOR 2 to have any inkling of any sort of truth in regards to the overall machinations of the Force in Star Wars. Doing so is pretty much immediate grounds for dismissal of your theory.
Its story was heavily clouded by the biases of its writer, Chris Avellone. He's into gray areas, so to speak. He doesn't like how Star Wars normally operates, so he screwed with it. End of story.