If you are already in the mindset of the Western Philosophical tradition, I have to concur that this article seems silly, as many have already pointed out. However, for those of us that while studying philosophy don't live on Europe or North America (the Anglo-European Philosophical Studies perspective mentioned on the article) and who already feel like second class citizens of the philosophical world, the article is spot-on.
Living in South America and studying philosophy (I am a graduate student in Brazil), the whole notion that the only true philosophical tradition is the Eurocentric one has other and more profound meanings and implications (even though, as I believe, most are unintentional side-effects of history). It is as if the old view of 'we enlightened [Christian] Europeans' vs. 'you poor wretched uneducated savages' comes back to haunts us once again (this is just a rough sketch just to give an idea — things are far more complex than this, obviously). That being said, the authors' point, from this perspective, seems much more valid — and even liberating.