I'm not sure how surprised Americans would be to learn that there are so many "centers of Europe". After all, we all know that Colorado is in "the west", Texas in the "southwest", and, clearly, "the South" is located in the geographical southeast :D
When it was a poor backwater "somewhere over there", it wasn't part of Europe. When it was Soviet, it wasn't Europe. Now that it's a bulwark against a militaristic Russia and a convenient place to do lower-cost manufacturing: "Hello, my European compatriots!"