I get why you can’t apply the same ongoing effect multiple times. No problem there. But why not allow a more powerful version of the ongoing effect, if more Force dice are committed?
Why do you think it's okay to do one and not the other? If you can't activate a power twice sequentially, why is it allowed to have a 'double' activation?
There's no roll to activate enhances ongoing effect for Agility and Brawn, so mechanically there'd be no difference between activating it multiple times vs activating it "super-hard" once. It's completely arbitrary to allow one and disallow the other.
Edited by LethalDose