To a large extent that is true.
What Louis did was as muchg down to technique as power. Even the damage that he inflicted might have been partly due to the fact that he caught people unexpectedly, and they didn't react.
Louis was arguably the best destroyer of big heavyweights, that the division ever saw. He might have been a cruiser, but the guys he was destroying wern't.
Just like Roy Jones Jr being so fast?