I went to Ming's Blog and can't find any indication that he backed-off his AF bug finding at all. He even indicates that Nikon issued a bulletin to Nikon Asia regarding the AF issue. Further, he indicated that he tested a second D800 body at Nikon with Nikon techies and replicated the same problem (ie., left focus points can't achieve accurate focus with wide angle lens wide open, whereas centre points and right side points do). A number of different WA lenses were tested and the issue was consistent.
If you can link directly to a page where he refutes his earlier findings please post it.