DXO never said that they were "lens tests" only, so I do not see he problem.
Uh, the title says "lens reviews". Symantics and misunderstanding? When i see lens reviews i would expect apples to apples comparison and a "lens test" tone to the article. As it stands, the whole article is meaningless.
"Nikon AF-S Nikkor 500mm and 600mm f/4G ED VR lens reviews: legendary performers in the range"