Why not roll a small Linux distro (something really titiny, like DSL, or picolinux, write a script to back up to thumb drive, then reboot the machine and wipe it? Push that image to every machine via network.
Sure it might have been a lazy move, but considering the plot probably could have been much worse, to me it was as if the folks behind it decided to play it safe at first. There're lots more people who'd be more likely to mob over a totally bad Star Trek than one that gets the job done better than some may have expected.
EE would be pretty great if the experts got paid to share, but that's not the case. And so, if you're not going to be going there to post your own expertisse, it's a lot more worth it to simply check the google cache (as detailed in a rather recent 2600.) Because if the only people who are getting paid are the site admins, then I'm not paying for the "expertisse."
2: Also, catastrophic ice ages have obviously happened before. Who cares if humans get wiped out? That doesn't mean the planet is uninhabitable for the species that exist after the fact and those that will eventually adapt for later.