The RDA can't do physics

[Ashen Key]

Clarke, you are also forgetting that humans like going places themselves. Even if it was entirely practical for only robots on Pandora (which it's not - robots are slower than humans, and so far we don't have AIs who can think for themselves; what the robots on Mars have done in six months, a human could have done in a week), humans want to go and do things themselves. Hold the actual stones in our hands, put footsteps on the ground, look at the sky from somewhere else.

If it was the slightest bit feasible, humans would go.