Also, it's as if Scott wanted to make a Hammer Horror movie but lacked the ability. I imagine him telling his team, "Right, so David's a weirdo cloaky death-mountain dweller in a storm who invites people into their dooms, but he also plays mad scientist in the catacombs. So he's both Dracula and Dr. Frankenstein, yeah? One of his creations then bites someone in the neck, right, and at the end David puts two people in coffins, sort of mummifying them. It's all classic, right? Yeah?"
I'm shocked he didn't go whole hog and give us a hair-covered Xeno-Werewolf.