I don't think so. It was created to help marriages, and they are pretty careful not to go down the religious road because they want to help everyone they can, whether they are Christian or not. The 3 couples talk most of the time, and they are secular. When the priest talks, he talks about marriage -- the family he grew up in, the families he has known, his relationship to the Church. But he doesn't preach, he just talks from his personal perspective.
My husband and I did not want the religious part of it. I let my mind wander while the priest spoke. It was a welcome respite from the emotional talks by the couples. I was glad to have the time to just get lost in my own thoughts. There was an optional Mass on Saturday morning which we did not attend. And there was a closing Mass, which we also did not attend. Saw quite a few couples sneaking out to their cars with us.
But there were people who wanted more religion. And they pulled the priest aside for private conversations, and they went to the Masses. So it has appeal to different people.