Considering how Microsoft has mostly ignored PC gaming in the last few years in terms or features or bringing games to the PC, I'll choose to ignore anything Microsoft claims in regards to PC gaming. You've ignored PC gamers for a long time now Microsoft and it'll cost you. Steam has cornered the market on digital game sales and delivery (imo) and I don't think it's a market you will ever gain the trust of again.
Enjoy the dying cash cow that is the console market, Microsoft.