all this will result in is every open source tool migrating to a fork

cutting out Slopify, their puppets and their influence forever

Possibly. It's also entirely possible that it results in very little change; I don't know that most users downstream care enough about life at the sausage factory to be deeply concerned of a changing of the guard in their package repo.

I could be wrong; Ruby tends to have a particularly passionate and active ecosystem of developers.