@wolverine: I agree with you, it'd be a good solution. Currently using my Xbox One, I can't help but gravitate towards the games that I have digitally. I use the functionality as it was intended, and it works well. It's similar to my Steam library where I'm able to transition quickly between games--but with the added benefit of voice-navigation and no graphics tweaks.
What you're suggesting would also cause more competitive pricing of digital items, making it a better buying environment for consumers. I'll always take more options.