The above provides the most perfect illustration of Witzel's mode of academic(?) discussion: he does not raise points because he believes in them and wants to get them either clarified or accepted; he raises them only to heckle and raise a din, like a speaker in a political harangue or a schoolboy in a school slanging match between two rival groups, where the same accusation is repeated again and again with a deaf ear turned to the response or clarification.