> I don't use GitHub for work, but it's always amusing to see the cries of people who do, when it does down from time to time. The ability of many companies around the world to continue operating depends on just one company continuously making the right calls.

Your general point is taken, but, yet, in this particular case, git is the (or "a") perfect answer to the host not being available. Other remotes could be used to route around the failure.