Or even theft. I lost more than a week's work last year becuase a team member had his laptop, external harddrive, and desktop stolen from his house while he was visiting his parents for Thanksgiving. Whoops. Triple backups don't count if they're all in one apartment.
Given the decentralised nature of Git, having continuous backups becomes less important unless all my computers (including the server) fail at once.
But yes, backups are important, and they are done.