Parliamentary Voting System and Constituencies Bill

My Lords, I wonder if I could take a little heat out of what has just been said. Will the noble Lord address the point raised by my noble and learned friend Lord Falconer of Thoroton and give his own reasoned argument why other constituencies should not be allowed to make the argument that would take them to the position of the Western Isles and Orkney and Shetland? I am not arguing about the two exclusions; I am asking why nobody else has the privilege of making that argument, as we have heard that the Isle of Wight would wish to make it. What is the reasoned argument against that form of hybridity?