From past knowledge of Ziegler's and Phillipson's work, the author knew before reading the manuscript that there would be significant conceptual disagreements. Yet, he was hoping to find enough points of convergence that they could lead to enriching exchanges and, maybe, future shared efforts at bridging gaps between their respective views. Unfortunately, it soon became clear that the authors were rejecting offhand all current multifactorial conceptions, including his DMGT, as mechanicist, thus devoid of any redeeming values. Their attitude left him little choice but to defend his theoretical perspective against their erroneous judgments and unfair accusations. In this article, the author highlights four comments that address crucial weaknesses in the authors' proposal.