A user from Reddit emailed Don Mattrick and got a reply from his chief of staff:
If this is the real deal does this mean that family sharing is still in for digital bought games? I think I'll buy digital games if that's some of the features.
Sounds like you would have to use your login details to access your content
so to share with a friend - they would have to log in as you
there is no family sharing
well i certainly dont get that impression from that shit that the microsoft idiot tried to pass off as benefits
the above is no different to you taking your games to a mates house - actually its worse ! - because you cant leave behind the disc, you have to leave behind your login details if your mate wants to keep playing your game without you.
HOW IS THAT A BENEFITS LIST !?!?!
Their PR is appalling