There isn't a lot to explain. If you own a PS4 this spring, you can get Nioh, Yakuza, Persona, Horizon, etc. If you own an Xbox One, you can get... Halo Wars 2. I hope that Microsoft zooms out and recognizes that the whole "run first-party studios like Lionhead into the ground" strategy isn't working for them, and that with Scorpio they need to try something entirely new rather than trying to sell "the most powerful console ever" without the games to justify it. Imagine if they released a modular living-room-PC-style console. Valve's Steam machines were a joke, but Xbox has the marketing power to try a similar endeavor and succeed.
It'd certainly be interesting to see, at the very least. I liked the idea of the Steam machines, and it's a shame they never took off, but with MS's hardware and software experience they may just be able to give living room gaming PCs the push they've needed.