Lighting and camera position aside, I see more optical flaws than anything else. In other words, not only should a proper testing environment and procedure be in place to give meaningful results, but repeating tests with an assortment of lenses. No lens is perfect, not even the coveted Master Primes. We often see people here experiencing image problems and it's quick and easy to point a finger at the camera, but many times it is the optics or other part of the system that may be a more direct cause.
His older wine bottle shots suffer from some of the same issues. The exposure and amount of noise changes between the 2K shot and 4K shot cropped to 2K.