Lonewolf,
I think you are missing a point. Just the discovery of a windb lown seat cushion or galley items that were indisputibly from MH370 would settle a whole lot of arguments. It would show that the aircraft had crashed in the southern ocean and was not in one of the 'stans. There would be some closure (not complete) for the families, Israel could relax more, etc., etc., Then the vagaries of drift would be investigated by an entirely different team of experts and a new type of search would start.