American AAdvantage appears to have cleaned up its region definitions.
The number of miles for an award in a zone-based award chart is based not just on whether there’s saver award space, but the regions you are flying between.
If you want to fly from New York to London, you look up the saver award price for “Contiguous 48 U.S. states” to “Europe.” It thus matters what region a country is assigned to, as it affects the price of an award.