What you say is true Joseph, no one is flawless.
Erwin does have his opinions, and isn't afraid to voice them. Most of his writing was about 35mm because his sponser for many, many years was Leica. That doesn't mean he doesn't know and respect MF.
Your belief that it is possible to deliver better quality when having to cover larger capture areas is borne out when you consider some of the great large format lenses. However, those lenses on a 35mm camera may not produce as good results as a lens designed specifically for 35mm.
I think maybe the debate on sensor size is a moot one. Smaller sensors can deliver excellent results as long as the % of meg count isn't to ambitious (given the current state of sensor design and manufacture). The only issue with this size to meg count is one of noise and tonal gradations.
However, full frame 35mm is what the photographers want, so those companies that cannot eventually deliver it, or something close to it, are going to suffer in the future as the meg count continues to increase ... Canon will continue to place pressure on the others as they relentlessly lift the bar on digital capture. The next 1 series cameras will see to that.
Unfortunately playing in the area of digital MF has become the domain of the wealthy. Hasselblad/Imacon, Phase One and Leaf have raised the bar with near 1 to 1 sized 645 sensors now well into the 30+ meg range and thus regained the supremacy of MF that cannot be matched by 35mm (given the state of current technology).
Even larger MF sensors once thought relatively impossible are now on the horizon ... as shown by this monster 6 X 17 format panoramic digital camera from Seitz that delivers images from a 160 meg sensor : -)
I would kill to have that camera, but then I would have to live in a cardboard box and eat oatmeal and hotdogs for the rest of my life.