Because they aren't very knowlegable? Who would have Mosley beating Margarito, the style matchup is horrible for him, Mosley needs to be able to put his imprint on his opponent to be successful, and there is no way he would do that against Margarito who just keeps on throwing, Mosley has way too many defensive liabilities.

People forget it is mostly Mosley's athletic ability that got him to where he is, his skill level has never been on the same level as guys like Mayweather, Hopkins, Jones, Whitaker, Dela Hoya, Wright, etc. I think this fight will prove Berto is well on his way, and that Mosley isn't a true tactician, he is a great athlete who wasn't taught how to box properly.