That still leaves the obsured practice of being forced into multiscreen for 4k even if you don't want it. And on that subject I still don't see why a 2 tb box is needed when 1 tb will do. Say the boxes can't do it is a nonsense.
Having 2 separate design boxes for the Q system makes no sense and isn't cost affective. So the 1tb should easily be able to do it.
Do you object to paying £12 or that the cost is called 'Multiscreen'?