Mention a papal pilgrimage or the life of a modern saint and it's .........blaaah.............whatever.....
Mention something about the occult or exorcisms and it's......."wow........what time's it on??!!"
Discovery knows this and thinks it's on to a winner.
I'm not sure what the Vatican is thinking. Perhaps they think this will help to convince people of the existence of evil as an objective reality but they need to be careful. Exorcism is not meant to be entertainment and real exorcists are self-effacing, retiring people who do not court publicity
My thoughts exactly.