Oh, don't get me wrong, Cars 2 was awful. I remember when it got nominated for a GG, I was pretty surprised. The Academy Awards, however, didn't nominate it.
Also, Disney didn't win an Academy Award for Best Animated Feature until Frozen. The category has been mostly dominated by Pixar (which is now owned by Disney, but minor details).
- 2001- Shrek (Dreamworks)
- 2002- Spirited Away (Studio Ghibli, Disney only provided the English adaptation and barely promoted the movie)
- 2003- Finding Nemo (Pixar)
- 2004- The Incredibles (Pixar)
- 2005- Wallace & Gromit: Curse of the Were-Rabbit (Aardman Animation/Dreamworks; Disney and Pixar didn't even have a film up for nomination this year)
- 2006- Happy Feet (Warner Brothers)
- 2007- Ratatouille (Pixar)
- 2008- WALL-E (Pixar)
- 2009- Up (Pixar)
- 2010- Toy Story 3 (Pixar)
- 2011- Rango (Paramount; No Disney or Pixar films nominated)
- 2012- Brave (Pixar; yes I'm still salty that Wreck-It Ralph didn't win)
- 2013- Frozen (Disney)
- 2014- Big Hero 6 (Disney)
- 2015- Inside Out (Pixar)
So, as you can see, it's not exactly a Disney-dominated field. It's a Pixar-dominated field (distinction needs to be made, because even though Pixar is owned by Disney now, it was on it's own until 2006).
- Pixar: 8 movies
- Disney: 2 movies
- Dreamworks: 2 movies
- Studio Ghibli: 1 movie
- Warner Brothers: 1 movie
- Paramount: 1 movie