I interpret ken as the "teacher" type of a sort - particularly within the realm of "those who cannot do..." (Note I use the term for him because it conveys the thought succinctly but don't really agree with the actual sentiment of the term itself). He also strikes me as a bit impish and playing around with the heads of his audience. I think if he didnt have so much commercial support from various manufacturers etc. you'd see quite a bit more "truth" coming out of his mouth.
Stop worrying about grain, resolution, sharpness, and everything else that doesn't have a damn thing to do with substance.