Good point, Pete. At 19.5 foot working distance (per the EXIF focus distance) and f/2.8 at 70mm, the DOF is 12 inches behind and 13 inches in front of focus. Raises questions.
The 70-200 was shot with VR *off*, per the EXIF. The 1/100s shutter speed is marginal per the general 1/fl rule of thumb, adjusted for DX but applicable only to screen size viewing, not drilling into the image.
So there are potential issues of camera shake, subject motion, and even DOF here. That is why I suggested that "stop sign" test. Which would hopefully be done in bright light within 2 stops or so of sunny/16, at lower ISO and reasonable shutter speeds.