I quit paying much attention to DXO testing years ago.
I look at the graphs and consistently see only tiny differences in the lines. I know people on both sides get worked up about their tests, but frankly, I would never make a buying decision based on the insignificant differences their tests show.
That is certainly my way of thinking. I've made the mistake of purchasing cameras based on reviews that were flawed more than once (you'd think I'd learn
I tether my camera to a computer to photograph my products on a light table. I focus and set the aperture to get the depth of field I want, or put the feature I want in sharp focus. I can change the angle or take other measures to eliminate unwanted reflections, all in near real time with every Canon XD or XXD since the 40D, and they all work great.
I bought a D800, it was horrible to tether and remote control, reduced resolution so you could not focus on fine details, it was so slow as to be unusable. I also had a D300S, it was worse. I don't know if current Nikon models work any better, I've tried to find good reviews, but they seem to be lacking. I'd think the A7R II being a mirrorless would tether well, but the few reviews I've seen hinted that it is not good at tethering for remote operation.
I stick with Canon now because I know the remote tethering just works.