Depends how it is made. Religion, philosophy, faith, morals, personal growth, all that can very well be used in games. There is nothing that says, it won't work. How to make it work is then a completely different question. The trailer specifically, the one you posted, did not spark much interest. Name also was clumsy. After the trailer I didn't really have any idea about the game...
If you'd share a bit more so I could actually give something valuable and specific, something actually constructive? From what I said, religion can work but from what I saw, this is not going to work too well but this is not a fair comment since I really haven't seen anything more than the trailer.