That's one theory. The other is that the simultaneous acceleration of multiple pistons with a conventional 180 degree crankshaft results in negative torque spikes due to the inertia of the pistons as they reverse direction. One would tend to think these spikes are miniscule compared to power pulses, though.People are making a big deal because it's been used in Moto GP for a few years now and they're finally bringing it to the street. If you read the reviews everyone loves the power delivery so I'd expect the other manufacturers to follow suit.
The thing I find funky is the crank rotation between pistons firing:
"..with an uneven firing interval of 270-180-90-180 degrees" supposedly this allows for a brief pause in so it will allow the tire to hook up easier than if it was continuous 180deg firing.