Yes, much of it may be independent sin of man, not influenced by demon or angelic involvement. But for it to have gone on for a decade and for NAMBLA founders to have any association, sure tends to be too great a scandal for the Adversary not to have devised a more sinister strategy around the whole affair within high reaches of the Church.
If these sins were several bombs falling at Pearl Harbor, it's as if the Japanese Fleet made a simple flyover, dropped only 5% of their bombs and then returned to base and the command simply acknowledging an enemy in the area and conducting business as usual. Situations like these make me nervous.