How would you feel if there weren't that many new Pokemon in the 6th gen? GF has only released a couple dozen Pokemon (give or take) and the game is nearing release.
The number they've revealed is pretty much par for the course. It might feel different to you because you were gauging by the American release, but this is folly for any previous generations - they were all released in Japan first. (And technically, this one will hit Japan first too, but by a matter of a few hours instead of months.)
Creator of Jay's Journey (see quote!) "It's not ten years old! Therefore, it sucks!" - Nostalgia whores everywhere