Yeah, I'm pretty sure it's "canon" that any native tradition that you might reasonably say are native wizards is muggle charlatanry while the real native wizards are the supernaturally evil shapeshifters that some native American religions believe in (which are often taboo to even mention by name) and everything native Americans believe about them is muggle charlatan propaganda.

It's almost the most offensive thing I could imagine a person coming up with.