I think the quality of opponent should be taken into account too.

Floyd was fighting one of the p4p best whereas Vitali was fighting a big, slow, fat, lumbering plodder who just kept coming forward and inviting Vitali to punch him in his stupid fat face.

Vitali is busy but unlike Floyd he didn't have to use any counterpunching skills. He's just a huge man with long arms who couldn't miss the human heavybag in front of him every time he stuck his jab out.

Under such circumstances we would have all thrown a lot of punches, it would be fun.