It's sad. Both sides. Lewis is an ATG, deal with it. Vitali was beating him on the scorecards and was obviously a foil for him, deal with it.
There is nothing new here. It is widely accepted that the cut and the outcome of the fight were controversial. Everybody who watched the fight knows what happened. As far as the official record is concerned, the ref never saw how how the injury was caused before making his decision. If instant replay was available the official record may have been different.