Thats like saying America is not United States, we know that :)
While geographically correct of course, politically and economically USA with its 50 states is the center of gravity in North America
just like like EU with its 27 states is center of gravity in Europe
For foreign business investment purposes Europe = UK + EU (and associated / treatied countries). Yes there are a few other areas (Ukraine, Russia), but they don't have much of an economy nor geopolitical safety, and are not in play for a multi-billion dollar investment unless its resource extraction.
There is a long tradition, especially in England, of distinguishing between Europe (the continent) and the islands of Britain and Ireland. It's very prominent in English literature of past centuries.
While geographically correct of course, politically and economically USA with its 50 states is the center of gravity in North America just like like EU with its 27 states is center of gravity in Europe