If by 'defending him' you mean actually coming out and saying that it was okay for him to indulge in sexual abuse, then I don't recall anyone on this site actually doing that; I'm happy to be corrected on that - but I'd also really be quite surprised.
I think the danger with Savile is that he's actually become a bit of a distraction. Personally, I have no doubt that he was a malevolent sleazeball of the first water - but the accusations against him will forever remain untested in any legal sense: his victims will remain alleged victims, and the fact that the dead have no legal rights means that his actual crimes will forever attract a crust of false allegation and lurid tabloid fantasy which will only ever serve to muddle the focus on any actual criminal activity.
His death allowed the subject to be turned into a grand guignol horror carnival, where the media can indulge in every lurid fantasy without the least concern of legal comeback. But, unfortunately, for any real victims, his is now an 'over there, then' thing - whereas what society really needs to be doing is looking over here, now. Yes, we need to learn from past mistakes but we need to do that in order to bang up the Weinsteins, not shout at ghosts.