Hi Manfred,
Well that is possible, although I would say "better trained" eyes.
Back in the day when cameras and TVs both had tubes (Plumbicon camera tubes and cathode ray tube monitors/TVs) one of my jobs was often "registration"; the task of ensuring that the images from red, green and blue channels were as well overlaid as possible - perfection (like we have with CCD/CMOS sensors and LCD displays), was unachievable in real world usage.
Due to my background, unfortunately, even viewed at 1353 x 885px in Lytebox on my LCD, I can see the CA even without going to 100% to 'pixel peep' at the full 4,215px × 2,764px posted.
The new big version is better, but still worse than I would have expected from such an esteemed lens - I wonder if, and I am guessing wildly here, the the high(?) ambient temperature, together with a black lens body exposed to the african sun, had contributed to this, due to thermal expansion issues within the lens barrel?
I also wondered if opening the NEF in Photoshop and using the default lens profile correction for the Nikon f/2.8 24-70mm lens in ACR, might produce better results than DxO? I was going to offer to do this with my CS5, but looking at the EXIF data, I see you already have CS6 ACR 6.5 and 7.1 at your disposal. This might be worth a try, certainly applying the lens correction is just a couple of mouse clicks - assuming it is not already defaulted on (as mine is).
Sorry to be a pixel peeping monster