They did that in a single cab with the BFC, back when heavy cabs were still cool. It didn't exactly fly out of the doors. Neither did the bright box IIRC. I don't think people want massive stacks any more.
I agree that a FRFR 15+8+HF would have been really nice.
And the dual band compressor. And, hopefully *keeps fingers tightly crossed* some Trace DNA...
From what I can see, the only differences between the B Transit and this new boy are a mid control, a tuner and the overdrive. The mid would have been nice, but the other two are not things I'd want in an amp anyway.