This is their new Mephisto theory, except it's safer to guess on because they're talking about cut scenes so they don't have to worry about being proven wrong like last time.
Nah, I might be bugging but I could've swore I remember reading the original synopsis for this series had something to do with a virus. Like the Flag Smashers wanted to wipe out half the planet with a virus or something, to make it how it was during the snap.
Which is to me, their motivation isn't really an issue for me either way.
Fred.