Besides the obvious dismissal as "teenage-hipster bullshit" (selling John Green books as design objects in a fucking urban outfitters? seriously?) What is… the point? This article spends 23 paragraphs talking about this new design concept without describing its benefits any more concretely than "it's interesting!" or "it's bold and different!" Which, like, yeah. It's different. But does it actually improve on the existing design of books, or does it just make them a bit "quirkier" and a bit closer to smartphones so that we can stick them in an Anthropologie?
Well a one handed book would have less words. Maybe less words will draw people in at this age of smartphones and social media. Less is more. More is less. Forget two hands, do it with only one!