Makes perfect sense. Right now both will co-exist but as introduce all this mainstream game streaming especially on PlayStation it'll make it easier when they want to transition from a physical media model to a digital only model where you simply stream your games to TVs, Tablets, PCs and other devices.
I mean you look right now and people are cheering the advent of a PlayStation Now. In a perfect world for them maybe Microsoft adopts this and doesn't have to take any backlash for the system they tried to implement before and ended up abandoning. when people don't have to pay $500 for a box to game on they probably don't even see what happened to physical gaming because they'll be too happy about money saved.