Chip, you're basically saying there needs to be a happy medium? When riding on the roadways ride as a VC, when on a MUP, BL or other bicycle specific facilities do not ride as a VC but as conditions permit.
This is what I have been trying to advocate for all along in my community. Thankfully, most if not all cyclists do this already. Why it is differant in other communities I do not know. This is how I always ride. Common sense tells me I can go bombing down the MUP as I would on a roadway at 20 mph+.
I do not think the concept is a new one, maybe the name you assigned to it, I like it BTW, is.