You're making a lot of excuses when Brandon has literally listed dozens of games that are colorful. The conversation was about art direction, not game genres.
Nintendo isn't the only game company that makes colorful games. Tons of AAA games and indie games use a very colorful, saturated look. Blizzard in particular loves to use lots of color in WoW, Starcraft, and Diablo III.
Counterpoint: Twilight Princess is exceptionally faded in relation to other Zelda games.