The point being made is that we lose the decentralization benefits of Git if we tie ourselves to the proprietary functionality of centralized platforms, as the current event demonstrates. Obviously Git being decentralized doesn’t help much when GitHub is down. But why is that so? Because of GitHub’s proprietary centralized features. The comment was intended as food for thought that maybe we as an industry shouldn’t tie us so much to those features then.

Wouldn’t it be wonderful if when GitHub is down we could just move to a different GitHub instance? Isn’t it sad that we can’t, although it would be very feasible technologically?