Seeing as the debate rages on I'll throw in my two cents worth to contribute to the weight of evidence. I know it's blasphemy to speak against the great and almighty Wiki but Uncharted isn't a platformer.
Game genres are determined by the predominate gameplay mechanic but are not defined by the mechanics that may appear in parts of the game.
Buster Busts Loose was a great platformer back in the SNES days. A genuine 90%+ game where 1/6 of the entire game time was a spent playing football. Should it be called a sports or have been allowed to be nominated in the best sports game category for GOTY?
If Uncharted wasn't nominated as a best platformer in GOTY by any of the major publications then it isn't a platformer.