If Wendigoes wouldn't work like that they wouldn't be Wendigoes. And if elves are immune to wendigoism, who's to say kobolds, humans or dwa
now your just trying to make excuses, Dwarf fortress alredy has part's that don't work the way the lore says
you have to drink vampire blood to become a vampire?
Wereworlfs regain all limbs?
were Enter WHAT EVER ANIMAL HERE?
As for who is to say who is and who is not? who ever makes the story I.E toady
It's called creative license, you CAN make a world with a wendigoe dose something diffident, they are made up,. its your world you can do what you want
many games show vampires as if they bite you you become a vampire? dose that mean the vampires in DF are not vampires?
You can make a windigo in this world do something like its a devise that has a CHANCE of hipping to some races, or it could become a were curse instead, set by Gods (thats ALSO one of the REAL lore for windigos, there are thousands of story's that all chnage what each creature dose, nothing says which one makes it a vampire, or a dragon or a windigo, you can make your own up
Vampires as an exsample, some have them as blood sucking monsters that look like bats 24\7, if they dont look like that it cant be a vampire?
or what about the chinese one where they steal chi instead of blood? must they do that to?
what about how they cant cross water? can turn to vapor? can transform in to MANY things, cant transform, weak to iorn, garlic, sunlight, moon light makes them stronger, they have no control, they have full control?
Which one is the "real vampire" that makers it a vampire and not something else?