Quite possibly. But that's got nothing to do with the map.
Slightly misleading though, you have to say. The implication made is that the world is divided into the "haves" (blue) and the relative "have-nots," (red) so one would assume, based on that map, that Britain has a higher GDP than France (especially when you consider that the other countries that are in blue are all among the 5 largest economies in the world).
False inference. The map states that the two colours balance out, equal collective GDPs.
If you swapped France for Britain, its higher GDP would make the blue greater than the red, not equal.
I expect there are other combinations that would produce a similar result.
Oh, I'm not saying it's an accurate inference, not at all.
But I think most people would construe it that way.