If anything, I think that 1998 could have played a role in making them LESS likely to report it. I think the memory of 1998 (with a similar situation where Jerry was in a shower with a young boy and it turned out to be nothing*) made them think that "here we go again, someone else thinks Jerry is doing something wrong when he's probably just goofing around again". I think it's logical to think that clearing him in 1998 played some part in him getting away with the 2001 incident and c/s/s not wanting to go down that road and report him again.
Exactly....Clemente Report. Sandusky set himself up as a savior of 'at risk' boys who used a affectionate and (some say) creepy technique to help these kids. If there was a claim, JS had two responses; a) it works because these boys never had a close relationship with a man and b) "you gonna believe a troubled kid over a highly decorated man who has spent his life helping kids? JS skirted that thin line between creepy/affective and "abusive".
Two highly trained psychologists disagreed. Neither saw a law be broken. Two undercover attempts failed to expose a crime.
yet, Black Elmo knows more than all of them.