We are currently NOT streaming on Facebook.
It started as an accident which had nothing to do with Facebook itself. It has not yet been resolved. The thing is, have we missed using Facebook for streaming or is going elsewhere OK? Twitch is primarily a gaming site and so the way that handle video is much more refined than some other sites. YouTube does not require a sign in and this makes it accessible for everyone. At the end of the day, when the Facebook thing is resolved, and it should be soon, it does not matter. I am only making a thing of the question because social media moves on and I think that deserves a post of its own!