Dick,perhaps we should be looking at this in the way Malcolm Turnbull suggests we look at Climate Change ....
... take the safest option (eg Class C) until it's proven that a more lenient approach (eg Class E) is warranted ...
We obviously have strong competing opinions within the Industry. Perhaps you are right and the many others are wrong ... but until that is proven ( and "I believe" is not proof) then we should take a more softly, softly, conservative approach ... what's wrong with that?