The list is how it is on VGChartz and pretty everywhere else.
If you think that multiplatform games should be counted as a single platform, which obviously isn't, then go tell that to whoever built those lists and don't tell that to me.
Also, I think we could ignore the PC games, afterall people do that when talking about "X360 exclusives" that are also on the PC but are ignored due to this being a console driven website.
Also I only see non Wii owners bitching about multiplat games and bundles. Talk about coincidence.