Like the game is based a lot around religions (Mostly the Christian Religion), and demons, and monsters from those religions, and it can easily offend people. I guess that's a better way to describe it. So if you are offended by a game that takes angels from religious text, and has you fight and kill them, then maybe you shouldn't play it. For me it was weird because I grew up around the Christian Religion, and I found some stuff about the game offensive