Interesting and probably merits further examination. They did mention that the findings only speak to short term results and of course the most important bit is at the end of the article:

"Ultimately, Hall cautions against using the study to determine what diet to follow.

"Rather than expecting a specific metabolic advantage for choosing one diet over another for losing body fat, it is better to choose a diet that is healthy for you and one that you can stick to for long periods of time, ideally permanently," he says.