I think I am missing your point here (or, more likely, I wasn't clear before). As pointed out here before, almost all the American-grown hops you use in your beers come from the PNW. And, in the BJCP guidelines, American style beers (yea, like our pale ale) are hop-forward.
Well, we should rename the entire American Ale category (category 10) to Cascadian Ale using that logic.