They counted Pokemon separately from Nintendo? Add them together and that's 53 out of the 100 games.
Also, by VGChartz estimates, Pokemon X/Y would already be up to #24 on this list, bumping off Super Mario All-Stars.
Actually, forget that. Famitsu's latest numbers put X/Y over 3 million, at spot #20 on their list, taking the spot from FireRed/LeafGreen.