I’m glad we got a show instead. It allows the other members of BH6 to get more screen time and developing.I recall reading once that the reason the show even got approved in the first place is because Disney was NOT interested in a sequel. I'm not sure, though, since I can't find the interview about that.
Though Bob Schooley agrees that Cass finding out would be a huge deal. I don't know if the show would get to that eventually, but it should be interesting.