It is well known among astronauts how the experience of seeing the Earth from space makes such concepts as nation-states and national borders seem banal, silly, not something a space-faring species should concern itself with.
The I in ISS is about international cooperation, and Hadfield's adventure was made possible by many great people in many great nations. He is a great person, but the fact that he's a great person doesn't make me a better person beyond that we share a world.
As a US citizen, I'm uncomfortable with the constant jump by the masses to assume that everybody that does something has to be from the US. You are correct that the ISS is about international cooperation, so isn't it good the nations that are involved get their recognition?