I have yet to watch it, shits full of witches and warlock, satan and crap, I watch it to see the projection or their reality (I know there is truth in there somewhere, what % i dunno)
Keep in mind that in episode 1 of S8, there is an apocalypse, so the quote you are refering make sense in the show. This show surely does a great job at desensitizing the audience to crazy stuff.