It's an easier theme to satisfy. By that definition Pandora and nearly any other movie based attraction would also be home in Universal Studios.
With Pandora they looked at the areas of the movie that made sense for the Animal Kingdom. When it was announced, the outraged masses jumped to "what does a movie about war have to do with the Animal Kingdom?" It was a fair question but that wasn't the angle they took. They found the common underlying threads in the movie and in the park and fused them together seamlessly.
For clarification, the underlying themes of Disney's Animal Kingdom are as follows:
- The intrinsic and superior value of nature – this means that nature, above all else is at the forefront of the design. This leads to parts of the park being out of their true control (live animals, overgrown pathways, etc.).
- Transformation through adventure – this idea is that adventure changes people when they experience something they’ve never experienced before.
- Personal call to action – a sense of responsibility for the animals and the conservation message.
By setting the land after the conflict in the first movie they've allowed time to pass and for nature to take over the environment. To me, the intrinsic and superior value of nature is the most important theme to Disney's Animal Kingdom and in Pandora.