If people start being pedantic, I feel responding in kind is entirely fair.
TBH I'm still not quite understanding why people feel it is so important to clarify that Britain is only in Europe geographically; but I wonder, does it make a difference that Hermann Hauser is actually Austrian? ;)
(I'm really not interested in squabbles about national identity and EU membership, but I do think it's fun to examine claims carefully, especially when it undermines ideological talking points.)