In fairness, we have no idea of the extend of the authors expertise, I would bet John Carmack as an insanely intimate knowledge of drivers and their issues.
We should just discuss the points made, not who is making them.
Also, I've followed Carmack's exploits for something like twenty years. In my humble opinion, when he speaks of anything OpenGL I would suggest you listen to what he has to say.
If you dont understand a subject enough to be able to debate on the points that are being made rather than who is making them you should not be debating it
I just dont think its good practice to disregard someones opinion just because someone you have heard of disagrees with them