I think it's more showing the limits of keeping 'big' blocks of foundings, rather than pslit them up in proper blocks.
To take the example of greenland, the funding level wouldn't drop much from anyone (save those actually residing in greenland) if aliens were allowed to 'terrorize' that area. Other nations would be far more concerned with their populated areas than if some ufos were allowed to pick up stray polar bears.
Not saying that polar bears are the only thing in greenland, but compare population density of the entire of greenland with, say, denmark, and you should see why panic would quickly erupt among the danish government if denmark was attacked compared to if its 'sister-nation' greenland was attacked. On the same account I can't see canada or the states giving much care about the population of greenland either, given that they would be more concerned with their own populations.