A 20.8 megapixel 5568 x 3712 pixels is not a shitty image. When we get to see those images, they will be much better than the GoPro images we're seeing
There are some very bright noise pixels on the dark area, which is different from the noise in similar photos taken with D5 (much darker and uniform).
The trick is to zoom to the same percentage zoom and compare side-by-side.
I did spot a few "hot" pixels visible on the Moon, but those are easily fixed in post.