I'm sorry, but no, Microsoft, and the world for that matter, do not work that way. Stifling open-source innovation in one small, small chunk of their bottom-line (and their gaming division is really small when compared to the behemoth that is the rest of MS) isn't even going to be on the agenda for discussion. They're stifling it because they want to control the content running on the platform (see any Apple product for why). Whether that is an acceptably smart/evil thing for MS to do is up to you, but let's not pretend it's part of the insidious crusade by the man to keep us hackers down, eh?