Well, we were pretty clear on this point, and we provided samples so you can see for yourself. We simply couldn't see a difference, even under heavy grading. The Shogun definitely created richer colors, but that's probably a color space thing and could definitely be compensated for with saturation.
But yes, that was a bummer for us, too. But if you want something more, jump to the a7S with the Shogun--and there you'll see a real difference.