Making light of the devil

[KagatobLuvsAnimu]

A quick question for those who have experience with being a member of a religion.

A priest or even better for our example, a bishop. Aside from whatever else they do, they peach fearing the devil and hell, how they should be avoided and fought all times and at all costs due to being the ultimate evil/punishment.

Now say a video surfaces of that bishop in casual conversation with a cardinal (let's say it's an outtake during a recording for a prayer video or something to teach others about the evil)and they are laughing about the devil in a passage saying something like: "and then the devil appeared, DUN DUN DUN... *thunder noises and sarcastic hand waving*"

My question is, what would you think of the legitimacy of their faith after seeing them make light of the ultimate evil?