I'm not quite sure if this is an actual article or what the takeaway is from this from a nutritional perspective.
The Paleo diet works and is not only suited to active individuals, but anyone really. Whole foods, minus anything inflammatory, plus high protein = one of the best diets for athletes and overall health in general. People who say that a whole foods & high protein diet is a fad, are simply ignorant. Maybe calling it 'peleo' is the fad? Athletes (or anyone) who've wanted to be healthy have eaten this way for years, not just our ancestors.
Scientists are studying the wrong aspects of this diet. Focus on whether or not it works instead of if this was truly an ancestral global diet. It's fairly common sense that more fruit grew closer to equatorial regions, but it's also common sense that athletic prowess requires high protein.