Although it's nice that Git is Git and we can all mostly still work, it still seems foolish to rely on a single point of failure like Github. I've been toying around with the idea of creating a tool that would map the Git api to work with two+ hosting services at the same time. The effect would be something like, run "$git push" and it pushes to Github, Bitbucket, and Gitlab. I can't imagine something like this would be too difficult and would eliminate having to twiddle your thumbs while you wait for things to come back up.

Git is fine, and the outage does not affect you and your team if you already have the source tree anywhere.

What it does affect is the ability to do code reviews, work with issues, maybe even do releases. All the non-DVCS stuff.