It was a great flick. The last scene, where the crew boarded the spaceship wearing suits, showed it was all just symbolic.
I kind of enjoyed Man of Steel for a similar reason. The Planet Krypton condemned itself by genetic modification. The ruling council ended up being a bunch of fools, shut down their own chance at space colonization, then denie that there were any problems up until their planet blew itself to pieces. If anything, Man of Steel I have to be thankful for in terms of renewing the issues poses by Gattaca.