I don't think it would cause problems. There are many religions, so add a bunch of stuff from each. We already have buildings and the mat where you meditate. Adding a bunch of religious stuff is no different than what we have. There are a bunch of items that I have never used in the Sims3&4. Simmers simply use what they want how they want it, which is one of the the main themes of the Sims. Not having these limits how we play. Many people believe in many things, but probably 3/4 or more of people today believe in something. All of this would add in well with wills, grim, dangerous, afterworld (on survey long time ago), angels, ghostville for good Sims and a bad place for bad Sims where only bad traits are and Sims only have negative traits. I think an EP like this would be awesome and allow people who want religion in their game to have it and others could use it or not, just like not using zombies or other things in game you choose not to. A catch all saying it would be offensive wouldn't be correct if it was done that way. It would simply be there if you want to use it just like everything else in the game. Personally, I would love a pack like that. We need more grim, wills, ECT. People heavily voted for dangerous stuff and the spooky stuff in the survey for the new pack.
Also, I think they did have it in Sims midevil and I don't remember hearing anyone complain about it being in there, that I can remember.
