Edge is claiming that the XBone interface/UI/OS has lost (or made worse) a lot of features that were available on the XB360.
They're claiming much more than that. The article uses very deliberate rhetoric in an attempt to paint the unfortunate artifacts of a rushed console launch as deal-breaking and unfixable flaws that are causing the XBox One to be a sales failure.
It's incredibly obvious that the author of this article is a Win8 hater who is attempting to use the XBox One as a pawn in his proxy battle with a completely different operating system.
Is the XB1 rough in several spots? Yes. Is the PS4 interface for friends better right now? I'd say yes. Is it remotely the cataclysmic big deal this hack is making it out to be? Not remotely. Does it still play games? Yup.