I realize you don't have time to give language instruction.
At some later time, perhaps you might investigate the author's claims more thoroughly (if you haven't done so already).
If you so desired, you may be able to refute him, backing the effort using the recognized methodologies of scholarly criticism.
Concerning textual criticisms, it is necessary for there to be agreement on which exact (extant?) texts are being used.
More from the link, from the author concerning this point:
How much the exact differences in opinion you and the author have lay at the feet of the "three commentaters" I can only glean somewhat second-hand, from the author's own commentary. I'm not able to evaluate the texts directly, myself. Yet I wonder...might your here stated disagreement be arising from being "on the same page", but from slightly differing books?
Please, let me be clear. I'm not saying here, that you owe me a reply or explanation explicitly spelling it all out. Such a work might better be published in the academic world, rather than be employed on a public internet forum.
Yet if you wish to do such rebuttal (of the linked source material) at a later time, it would best be done by first finding out precisely what it is that is in dispute.