[MeechMunchie]

From what I got from the ending, was that they went back to a better time where there isn't calamity. Or something like that. And yeah, I started NG+ already.

The reason I picked Evacuation was partly that Rucks was clearly trying to escape from his guilt over his past mistakes, but mainly that... well, it's a saved state. No-one remembers. You see in the credits that everyone makes the same choices again. There's just going to be another Calamity, over and over again, and it's probably been going on for hundreds of loops by the time we play it (It might be that the devs wanted each player's experience of the game to be equally valid, so each time someone plays the game, it's another Restoration loop).

In case you think this is just fan theory, remember the start of NG+. "... I-I'll see you in the next o-one..."