If Orang mane bans GitHub they've got their local clones and can whip out a local server and a CI solution.

If Orang mane bans Claude, they've got their local models.

The latter has already happened too so I'd say their risk modeling is spot on.

If you're writing open-source code then there's obviously nothing wrong with publishing it in a public repo. "Using Github" doesn't require you to use their CI, but even then, a human managing secrets for GitHub CI is worlds apart from trying to make sure an internet-connected agent doesn't leak secrets. And if you have sensitive data that you can't send to a remote model but you would benefit from the technology, then processing it with a local model without network access is the obvious way to address that.