Normally, I'd agree, but in this instance it is clearly marked as an official update, it's not new material, and it's done by James Wyatt (who wrote the 3.0e OA in the first place).Furthermore, it's Dragon. I really think that's all that needs to be said, as to taking it seriously. I mean, why not start including 3rd party books or homebrew while you're at it?
No, that's absurd. That last sentence is very clearly an example to show what he's saying. It is the bolded sentence that gives the general rule - only one enhancement bonus applies.Plus, with the way it's worded, the "fix" only applied with +1 cloth, +1 chahar aina, and +2 dastana. I just think that's worth pointing out.