Ross has to tow that undefeated line because its the only stick he realistically has to beat Haye (or anyone thinking Haye wins or Fury is a joke) with.

The same reason he brings up Lolenga Mock every time, he's obligated to. The fact that Haye then went on to chin plenty of cruisers and heavies winning multiple world titles in both weights isn't half as provocative as 'yeah but he got chinned off a light heavy'

Its a basic argument but the only one he really has