If we have learned anything from these sordid matters, especially following the iconic example of the Pennsylvania State University fiasco, it is that human beings have a natural tendency to gather the wagons, deny hard truths about friends and colleagues and take misguided steps designed to 'protect' their institutions. Said steps actually are counterproductive to the 'max' in that they undermine the moral authority and integrity of the institution itself.
For those whose faith is so weak that human failings cause them to doubt the Church, I doubt you will find any solace or ultimate satisfaction by choosing 'another pew' for THAT reason.
I don't think it's their faith in God that it is weak, but rather, the faith in the institution.
The fact they are choosing to remain within Christianity shows that they still accept Christ as Lord; it's just the throne of Peter they are having difficulty with.
Frankly, I can't say that I blame them.
Heaven forbid, but if my child was raped by a priest within the Orthodox Church and my Bishop did nothing about it, I would be lying if I said that I would have difficulty submitting to his leadership. In the US, Orthodox Christians can bounce from jurisdiction to jurisdiction. If you don't like Bishop "A", just go down the street to another jurisdiction under Bishop "B."
For Catholics, this is not the case. Furthermore, the cover-up went all the way to the top. The Vatican knew about it and did nothing.
How, as a mother, could I continue to encourage my child to take communion at the hand of the Church who victimized him/her?
I'm sorry, but I don't think we are in a position to judge their faith.
May the Lord have mercy on them, and provide healing to those wounded.