We've only hiked a little bit down the canyon when we were last there (which was back in 2009, sadly), but I also strongly disagree with the author. It may not be the longest, deepest or widest canyon in the world, but if you actually go there and take a look at it, you'll see for yourself why it's called the Grand Canyon. Then again, if this article keeps some easily bored/jaded people away from the national parks, all the better for the rest of us!