I still feel it's a failed ending. If Asseylum can stop the war with just a speech, she would've done it back in Season 1 when she gave a speech from Earth. No one bothered to listen then.

And now at the last episode, whole of Vers can manage to forget their years long of fighting for their dream on going back to Earth, whole of Terran can forget their grudge after being attacked, just after one speech.

I guess everyone just went "ah fuck it. I'll just go to earth and retire."