Four times that person has not been available. I don't see what we would gain, necessarily, from having him that we couldn't get by doing some research on our own time.
Also, it's really not reassuring that it's not the only demand you have, and you're not willing to accept the rest and begin clause-by-clause by a certain date either. It would be a lot more reassuring if that was your request, having stated that you're in agreement with the rest of the motion and that was the one thing. As it seems that's not the case, I don't see why we would accept that amendment at this time.