Europe is not a country. The United States is a country. Canada is a country. Comparing our number of invites to the entire continent of Europe doesn't even make sense.
But, Canada and The US are bigger than the 5 European countries that got VGC events, and there's a massive difference in the size of the playerbases so it is sort of comparable. I am honestly surprised that it's only 4 invites for US/Canada though, that's just my two cents though. I think it's honestly a transitional year for VGC, so maybe we're just going to have to bite our tongues about it this year, and hope they listen to feedback.
Invites cost nothing though, just saying.