If one was to call the FRC "varsity," I would be inclined to refer to the FTC and VRC not as "junior varsity," but closer to "varsity, jr."
I like the current FRC size, nominally speaking, of course. You can usually see it from the stands (remember, not all of us watch it on TV) and can still lug it around with two people. It's small enough to fit into a classroom, yet large enough to demand respect and be gestured upon without 'pointing to' the whole robot. Plus, they're good to lean on sometimes.
FTC/FVC bots can be carried in by one person, be set down on a desk, and are a good pointing to size. Of course, if not noticed, they can be tripped upon. (poor Jake)
Plus, their relative sizes seem to be the perfect size for David & Goliath.
But don't take my word for it.
And remember: if we weren't all crazy, we'd all go insane.