Believe me, I would be running that group over here rather than there on Facebook if it was possible.
We have a few hundred members in that group that are here on Steemit as well (out of about 3,500). That may not seem like a lot but Steemit discussion is somewhat popular there. It comes up in regular rotation among the many topics we discuss.
I would rather run it on a decentralized service versus Facebook, that is for sure.