Originally Posted by
BAS
Making Franklin an active member of the team changes his role. If he is included in the FF exploits, and not just a tertiary character, it's inevitable that he'd be in the middle of a conflict where his presence alone is enough to turn the tide in the FF's favor. I'm just saying Slott has to put together stories that DON'T allow for the "Franklin can just reset everything" solution.
And yeah, previous writers have taken Franklin out of the box, then put him back in numerous times. Again - being able to reset reality is just something that can't be failsafe for every FF adventure going forward.