"Not that science has anything to do with it."
Wouldn't science say that lots of high gain tubes in the output stage of a power amp are more problematic in general from a maintenance and cost perspective, both of which affect the end user?
Making the benefits of tube sound more affordable and usable for the masses seems to be the profound design goal here. On paper at least, I'd say mission accomplished!
My local dealer sells Rogue and the gear there always sounds great. I'm very much looking forward to hearing these sometime soon. They would seem to fit very nicely into either of my systems down the road if ever needed.