Okay okay okay, let'a put all issues aside and talk about lore:
Where did Woodie learn how to make those idols in the first place?
Someone must've explained how to make idols to let him control his own therian power. Could he have met a gypsy just like Lawrence Talbot?
It's kind of a shame the short didn't even talk about the origin of the idols, but still let's discuss their origins.
There are natives in Canada that might have assisted Woodie into lowering his menace in Canada. My buddy @Raven Crow even described Woodie as a skinwalker.