Yeah, that description is pretty much these fallen angels to a T. Except that their motives are stolen from the original Fallen. So yeah, she's an idiot.

Actually, I suspect the Book of Enoch is closer to Meyer's lobishomen/Quileute mythology. Fitzpatrick probably found it, thought it was cool, and added her own "twists" to it, not bothering to consider that it's someone's actual faith she's messing with. -_-