...? Can you explain? What has he left out?

The only thing I can think of is the humans back on Earth. It's suggested that their planet is 'destroyed' (probably 'damaged'), but as they are sent back there, then it can't be too bad.

And he doesn't suggest that all humans are bad. Because we only see one company, and a bunch of intergalactic mercenaries. And some humans become 'good' - Jake et al.

I also find it difficult to believe that anyone would wish to be identified with the group trying to obtain wealth at the expense of an indigenous community whom they refer to as 'blue monkeys'.