What a horribly misguided affiliate policy.
They are attempting to monopolize certain keywords by not allowing their own affiliates to use them and forcing them to change their pages if they get listed - lol
This also gives them a great loophole to not pay affiliates (this is not to hate or suggest that they do not pay, just a contract review comment)
We love affiliates that get search engine placements for our sites. I would rather pay affiliates than Google...