It doesn't sound like the person really understands the technology very well at all; there are many factual errors in the article. So he watched rumor sites and was disappointed that the rumor-site published specs on the D6 turned out to be the figment of someone's imagination instead of real specs. Whose fault is that? If he had been an insider as he claims, he would have known what the product really is going to be like.
Of course we all know that Nikon are working mainly on the Z's since in that sector they came in late and they need to catch up with a comprehensive product line.
The real problem is that fabricated specs get routinely passed on as "rumors" and then there are sites who publish such "specs." It looks like Nikon are getting a lot better at preventing these sites from getting real information until rather close to the product announcement date. So this means that if Nikon keep it that way, rumor sites increasingly publish fabrications. Another example was the rumored Z lens roadmap, which contained zero additional correct information that wasn't already known in the the original roadmap, and the real updated roadmap that Nikon published eventually contained none of the lenses that the rumored roadmap had included beyond the already previously known ones.
My guess is that this trend will continue. Rather than blaming the rumor sites for false specifications, and setting the wrong expectations, people blame Nikon for not meeting the fabricated specifications.
If one wants to know what Nikon are up to, interviews such as frequently published by dpreview and e.g. imaging resource reveal a lot about Nikon's strategy without being specific about yet unannounced product details. From this information it is easy enough to deduce what can be expected in the future. And not be disappointed.
