With all due respect, I don't think that you and Ken are in disagreement. You both believe that the camera is an essential part of the photographic experience and endeavor, as it obviously must be. Ken makes the very valid point that the purpose of the camera is to make it possible for the photographer to accomplish his or her vision. Put another way, the best camera is the one that best suits the photographer's intended purpose with the least amount of thought given to the tool and the most amount of thought given to the "seeing" of the final image.
I would suggest that Jay Maisel, who I have had the pleasure of shooting with on two occasions, would succeed in creating striking images with whatever equipment you gave to him. However, he chooses to use a Nikon D3 because it allows him to capture the images he wants in the environments in which he chooses to shoot.
What Ken was communicating is that many of us get caught up in the technology chase and forget what drove us to photography in the first place, i.e., creating that "wow" image. Does the camera make a difference? Of course it does, and Ken would be the first to admit it. Does the photographer make a bigger difference? Of course he or she does. Give a talented photographer and an uninspired photographer the same equipment and the same shooting environment, and I have no doubt which one will be the more likely to produce the "wow" image.
I have also experienced shooting with Michael in the Amazon last year. Michael, you own or have owned virtually every fine piece of photographic equiment ever made, but can you honestly say that these purchases have improved the artistic, as opposed to technical, quality of your images anywhere near as much as your attention to improving your ability to "see" an image. If you believe the answer is yes, then good for you. You are a rare creature in that respect.
Rather than disparaging Ken's message, perhaps the debate would be furthered by concentrating on the insights he offers about the relative importance (not the exclusive importance) of vision over technology. There is value there.