I'm not so sure this article is really anti-low-carb. I think it is pointing out the fact that many people go into the WOE uniformed and quickly abondon it when they don't get what they were looking for. Personally, it's taken me 6 weeks to get the 20 lb loss mark, but I researched before I started and understand the process.
I also agree that a many may actually come away with a far better understanding of what is in foods today, particularly things like sugar and flour.