Ignore Button really was a great invention... so let's use it, stop discussing the troll (who I long ago ignored), and get back to the original topic.
There was an article about this song in today's Toronto Star, if I recall correctly. I would hardly take it as an attack on Canada, but rather as an attack on what Americans think of Canada as. That said, even for Weird Al the song is very, very sub-par. A few points where I laughed (curling...), but overall, I would give it a C.
White & Nerdy and Smells Like Nirvana, though...