No matter how fervently some cling to the traditions of men. :o(
How does truth unravel (did you mean unfold?), and what, pray tell, does any of this have to do with the "traditions of men"?
There is no tradition of men here other than sin.
Priesthood? Founded by Christ.
Church? Founded by Christ.
Those are not traditions of men. Sin? That certainly didn't come from God. The defenders of Marciel just can't believe that the man they know to be so holy could have done such terrible things. It wouldn't be the first time that an apparently holy and decent man was not what he seemed.
The only silver lining here is that Marciel has done far more good than evil even if all of the accusations against him are true. His order of priests is a very good one. Whether or not it would (or will) survive its founder's destruction is another issue.