Good points, Petrus. 

Well we know that abusive priests have a set of issues and some compounding ones as I point out below. 

We know from the most recently published USCCB study (performed by an outside group) that showed that more than 80% of abusing priests abuse against a same-sex victim.

We also know that an even higher percentage of victims are post-pubescent.

We know that a disproportionately large percentage of priests are same-sex attracted compared to the population. 

We know this set of tendencies/preferences/drives/motives/attractions (insert the latest term) right away puts them in a tough spot, where they have to conceal their proclivities, given Church teaching.

So it's likely that a quick trip to the Confessional can't unravel all the "issues" motivating a particular priest.