People have spoken various things about transverse mounted engines ever since the early BMW's
It's like watching a large V8 when you sit and rev it, the engine tweaks, torque reaction.
I've ridden a couple Bimmers, Honda Wings and not noticed anything to be worried about, However
Did a test ride on a Triumph Rocket a few years ago. Sitting at a light and being first in line and make an immediate right turn as you're pulling away is a bit awkward. Once underway however it's not noticeable. And talk about a bike that doesn't need to be downshifted if you want to make a pass at 70 mph, just grab a handful of throttle and turn it up.