It's like what happened with GameStop, claiming that Nintendo was holding back units because it had met it's sales forecast. These people and companies see the success that Nintendo is having, and they didn't predict it beforehand, so they'll do whatever it takes to get anything they can from Nintendo. GameStop thought they could pressure Nintendo into sending them more units, so that's what they tried to do.
When looking at this website, CB games, it's obvious that it's built to look like it's impressive, in both stature and and utility. However, looking at the articles, I see that it is instead basically run by one person, William Usher, with maybe a few stories being done by the guy that wrote that editorial. So what does this website gain by making a big story that sounds like it makes sense? Traffic and name-recognition, something I don't believe they already have. Odds are that they are using Nintendo to bolster their image. It won't work, obviously, as they suck as a gaming website, with all the old news you could ever need, that every other website already has, but they are still trying.
Also, people always like to see the top dog go down, and the underdog rise up. Eventually, the roles are switched, and people root for the opposites. Look at what's happened to Sony. Websites love to post news about how poorly Sony is doing right now, even though, in all reality, the PS3 is fairing better than the PS2 did. They loved to post success stories of Microsoft and the Wii, because both of these were the underdog at the start of this generation. Now, we see that roles are beginning to switch, and with this, we'll see opinions of Sony begin to grow more positive, and opinions of Nintendo will begin to sour compared to a few months ago.
That's all what I think, though.
The main thing is that the editorial is a cash in.
Edit: Also note that the majority of the website's fanbase is Xbots. I found that by voting in a poll there, along with how they spin things about the 360 compared to Wii and PS3 stuffs.
http://www.cinemablend.com/games/Who-Will-Dominate-2008-Wii-PS3-Or-Xbox-360-Check-The-Results-3786.html