THe demo is good, does its job of presenting the game and making you want to get it.
However, I will subtract a point for passing off new age ideas and doctrines and trying to pass it off as something connected to Christianity through the use of Christian words. That way it almost sounds Christian (martyrs, saints, faith, etc.) while giving a wildly different meaning to the words that has nothing to do with Chritianity, Roman, Orthodox or Protestant.
So play the game if you like, enjoy it even, but do ignore the terrible theology.
[4 of 5 Stars!]