Not to comment too much on the validity of either situation, but given the constant ongoing cries of character assassination over hermit Luke despite that idea coming from Lucas, pre-dating both Rian and JJ, I can’t imagine the wider reaction to the idea that Leia started the First Order and was to blame for all of it all along. Even if it could track with her character arc, just the tarnishing of her good name so to speak would drive people insane. I certainly would be impressed with any edit that pulls it off, but just something to keep in mind.