I don't think using Netflix means there are no games to play; I have plenty of Wii games yet Netflix is still one of my "most played" titles according to the Nintendo Channel. If anything, this goes to show that there is usually garbage on TV.
Anyways, I used Netflix today and I made it a point to browse around and see if I noticed anything different. From what I can tell, everything looks the same as I remember it, so if there were an update, it was something subtle. The only update I know of is from way back when it switched from being a disc to a download channel. It's also possible that the Canadian version has some differences, as you mentioned.