We suspect that neither Mr. Cameron nor 20th Century Fox (a sister company to this newspaper) had any idea of the effect their movie would have on the other side of the world.
While Cameron probably did not predict that exact scenario, I find it hard to believe that he did not see the parallels between the film he created and what's happening right now all over the world as first-world countries continue to exploit the third-world at the expense of those living in it.
In this situation it's only slightly different as the conflict is within the country itself. It's not surprising the film resonates strongly with those humans who find themselves in the same shoes as the Na'vi.
See: "The real Avatar story: indigenous people fight to save their forest homes from corporate exploitation"