I'm not bothered about his credentials as a HoFer, if it happens it happens if it don't it don't.
As far as Naz goes, He had a great career, made a shit load of money , but the fact of the matter is that when he fought a top drawer fighter , he was exposed, schooled and could not get over it. Once the aura was gone , it was gone, not dissimilar to Tyson really. Tyson carried on after his aura was smashed and his legacy (and his personal life in general) suffered for it.
Sometimes , Greatness is about how you come back from defeats or setbacks (Ali for example) and showing the "Cojones" to do so. He couldn't do that and couldn't find the motivation to do it.