@lain I thought it was because of YouTube trying desperately to avoid becoming subject to Canadian media regulation originally intended for commercial radio and television stations that would *require* them to overrepresent Canadians. They want to say "See! There's plenty of Canadian content, we don't need to be forced to boost it!"
However, I thought they were only doing that for viewers actually in Canada. If you're somewhere else and seeing it too, then I don't know what to think.