IMO the Ramsey's were saving blaming BR as their ace in the hole in case they ever did get indicted, does anyone else think that?
I'm not sure. The staging IMO, was to protect BR, not because he was guilty, but if they'd called for help for a comatose and irreversibly damaged JB, there would still have been huge ramifications for the family. Patsy knew there was always a chance her cancer would come back (as it did), and didn't want her remaining time with her son to be tainted that way. I doubt there'd even have been any jail time for the Rs. But the damage to their lifestyle/reputation/standing in the community would have been unbearable. Do they took a gamble- and won.
I really don't think the Rs would have tried to pin it on BR. I don't think they'd have put him through that, even though according to Colorado law, he wouldn't be charged.