Nah... I believe we are confusing resolution and pixel density. Resolution would be the number of pixels that make up a frame or picture; pixel density is how close together the pixels are. This does have an effect on picture quality.
Take a 4" x 5" large format camera shooting Provia 100F vs. a 35mm shooting Provia 100F. They both have the same pixel density but it's universal knowledge that the resolving power belongs to the larger format. All else being equal, you can get all the things that make a more pleasing picture: crisper detail, better tonality, less noise, etc. from a larger format because of the higher resolution not being so "stressed" when enlarged in say a print. This analogy kind of carries over to digital too, ya know?
Also a smaller pixel pitch = smaller pixel doesn't necessarily make for better. It's actually not good for pixels to be too small. Currently smaller pixels sensors are more prone to image noise and diffraction.
Personally I think the DCS-14 is a quantum leap but maybe sometimes over-hyped too. Please, not trying to offend just throwing my conceptions out there.