Because, from FTFA - they're worried about Github, not git. Huge amounts of OSS projects are hosted on Github - that's where their code is, their issues are. I

Because, from FTFA - they're worried about Github, not git. Huge amounts of OSS projects are hosted on Github - that's where their code is, their issues are. If you want to report issues or collaborate, you need to use Github. The issue would also spread to other related tech, which integrates with Github. Sure, there's ways around it, and more than likely Chinese devs would set up their own instances to work around the blocks - it would limit/reduce overall collaboration. A net-loss for everyone.