This is an exceptional article, besides the fact that many of us in the industry knew this already, but it's nice to hear an established DP reiterate the point. The human eye, or more so the brain is built the way it is built. Without talking about cyborg technology (which is more real than most in the public know about) there's no biological upgrade that's going to take place in any of our lifetimes. What this means is that resolution past a certain threshold (ultraHD in this example) is considered "diminishing return". There is no perceptible advantage to going past a certain resolution as it will not be processed by the limitations of our biology. Just as we will never be able to perceive IR rays with the naked eye.
I think this is important to keep in mind when these camera manufactures use 6K and above as a marketing selling point. If people stop buying into gimmicks, it will force camera manufactures to focus elsewhere, like improving on other features like workable AF for example. It will also drive the market to lower, more reasonable pricing. Suddenly, Arri, RED, etc., will have to compete more in the prosumer 4k market, which I personally feel is a more innovative space.
If you like Samsung NX products and want Samsung to keep them alive sign the petition below and have your voice heard!
Not the optimum workflow, but it will save your ass (and computer) every time.