Whenever there is an event related to religion or clergy, I think it causes people to want to discuss the event. I don't see anything wrong with that discussion. And when there are some high-profile cases involving the church, it can't help but resonate in society.
I think The Da Vinci Code was discussed a lot because it talks about religious orders. People are interested in such mysteries because they are part of the history of religion as represented today by Making Disciples of Jesus Christ