How is this news when we all know git is decentralized? News at 11: company enforces their own TOS. Github is about as useful as a brand of kleenexes. If y'all didn't want this you wouldn't have used your damn pull request software to host your code.
It maters since decentralization is not a silver bullet. There is always some main repo, and it is hard to change it, or even just inform people about change. If you want other people to participate in your project then hosting it on biggest/most popular service reduces entry barrier
