We arent relying on Steve Barwick but on the research he has accumulated over the years and which are linked at his site. Yeah of course our understanding has nothing to do with the person SB. Nothing to do with his opinion at all.
It is funny how the two sides seem to make it personal when its about the truth vs the false. DQ has been deluded in his thinking by business interests who have built their economies on inefficient products now being left behind, like buggy whips and beaver hats.