Well, that is largely dependent on whether there is a precise number of alternate universes mixed in with those that are parallel to other universes. Like mega universes within a universe, so to speak. I like that, mega universe! I'll be coining that.
Not a flaw, there is the ultimate potential, however great or small, that one will be spared, and it is there in that universe that perhaps an effort to restore all others can begin. These sort of events often converge on a central point, perhaps part of this journey is the search for that very thing.