Talk:The Cutie Re-Mark - Part 2/@comment-3410511-20151208030939/@comment-10390252-20151210170618

FWIW, we saw no indication that the Human World was affected by the events in this episode. If someone were to ask me to create an in-universe explanation, it is that the Portal has a 'magical censor' that blocks continuum changes from bleeding across the universal barriers.

That might be why we never saw Sunset in any of the alternate time-lines; her time line was shielded from changes by the fact she is on the other side of the portal (to the point where she may not have actually existed in any of the alternate time-lines).