Truly, it's only the absurdity of being visible to the public while hermetically-sealed in a glass container that's striking to me, not anything to do with the denominational or faith-based aspect of it.
I'm a refugee Catholic myself, and I mean no disrespect to the old guy, but there's something about the display which is just hilarious to me. I mean, what if he farts in there?
P.S. -- To be absolutely clear, I'm not ridiculing the man, or the Papal office, but rather the packaging.