Anyway we could put even a one-liner in the README on what happened?

Maybe we missed a blog post or something? On the outset, it sounds like a good thing for the TF provider to come under Github's umbrella, but this took us a bit by surprise!

TF gives a great approach to managing GitHub and it would be good to understand if there are any changes without us having to speculate. e.g. is GitHub now providing support for this?