and they would not recognize a vampire if they saw one approach in Vampire Lord form? I agree with them not knowing what one is due to them being so rare but the Vampire lord is kind of obviosuly a vampire with the fangs permanently jutting out of its mouth and the bats circling around thats a dead givaway them even Citizen NPCs are smart enough to put 2 and 2 together and even they come up with vampire even after never having seen one before and even if they arent smart enough to figure it out why the hell would they run up and attack a 7 foot tall winged demon
Does not matter, as logic falls by the wayside when someone/something is invading your turf.
If we were both hunters, and you invaded my turf, I would begin a conversation on a hostile note, not kindly ask you to leave.