Fair point, but the effect is not that bad and is predictable. And with the transverse cylinder layout (longitudinal crank) there is a benefit in that respect. For a normal engine with the crank itself running transverse the higher you rev the engine the more gyroscopic force it develops. That makes it harder to steer. An example of that was my older brother and his Suzuki V Stroms. He had a 650 V Strom and a 1000 V Strom. He would complain the the 1000 V Strom was too hard to steer. I taught him not to rev it as high as he would rev the little 650 V Strom, it did not need to rev high to make power. And by not reving it any higher then you had to it made it much easier to steer. The Guzzi layout doesn't do that, the steering is what it is with almost no impact from how high you are reving the engine. It does turn slightly easier one way when getting on the gas and slightly easier the other way when getting off the gas. But that effect is very small and you really aren't likely to have it make a difference.