And if a vampire has their mouth closed and thus appears like a regular human we will still delete that vampire as being human. If a werewolf is in its human form we will still delete that werewolf as being a human.

Again, it's a human with its head in its hands. Even if it's traditionally called a dullahan doesn't change the fact that it's visually literally a human body with a human head in its hands. And our approval guidelines are still purely concerned a out visuals. If it looks like a human it will be treated as such.

I can't even begin to grasp how a wiki stating that they're usually indistinguishable from normal humans means we have to accept them when they do look like a pure human with trouble keeping their head on their shoulders. That argument is a complete non sequitor.