It's a southern thing about eating wild critters, and since the deer they have are pretty small and stringy, not the big healthy corn fed animals you see up north which are considered "bonus livestock" by farmers, or a nuisance (they chow down on a lot of farm grain) which makes year round hunting fairly well tolerated.
So in the south, the ecosystem is actually more wild, and people get into this "have you tried ______", and every once in a while someone finds something they like, smothered in enough oil, garlic and spices to disguise what it had been anyway. Looks like there is enough reason now to just skip the armadillo.