Ludicrous, I'd call it. Can't you just see a bunch of guys sitting around trying to think up some new threat to humanity? "Let's see, now, we've had zombies, aliens, big apes, vampires, giant insects, Frankenstein creatures, tornadoes, wolfmen, earthquakes, poltergeists, melting ice caps, ghouls, bug-eyed monsters, tsunamis, demons, asteroids, blobs, cat people, vengeful pagan deities, hurricanes, man-eating plants, dinosaurs, gremlins, trolls, gargoyles, the Devil himself, and last but not least, mummies. So what's left? I know! Angels! Bad angels vs. human beings! That's the ticket!"