Sephiroth's concerns are different. That this might, after all, be one of the Ancient's tricks and not a means of escape. Or that he might, like Loki, forget his time in this realm on leaving it. He doesn't want to go back to who he was and how little he had--how little he allowed himself.

But they pass through, and on the other side of it, he still remembers. He releases Balthier and looks around. The skies in question are webbed with cracks, but it does otherwise look very much as Sunset Falls should. Would you call that home?

"...we seem to be back."