An interesting article, but I'd agree that if the reporter(s) had looked through these forums, they'd be much better informed.
I wonder, though, about part of the article's premise. It's one thing to locate the "best" seats in terms of general legroom, proximity to lavs/galleys and other fairly objective criteria. But the subjective ones are what the article seems to be implying it has a handle on, which I don't think it does.
For instance, people seem to come in all sorts of shapes, sizes and preferences for harder or softer seating. One person's "Flagship paradise" may be another's hellish seat experience. Generous pitch does not always mean a comfortable seat to many folks. Seems hard to quantify things like that.
Lastly, I'd certainly agree about the strangeness of avoiding DC-9s and M-88s. I was recently on one (NW, of course) and found the solidity and comfort of the airplane to be as good as it was when I first flew on one many years ago.