Well, look at Apple Records vs Apple Computers. They were originally in completely different fields, but there was trouble.
http://en.wikipedia.org/wiki/Apple_C...Apple_Computer
So who knows?
But I think part of it is that there has been some backlash against Metro in PC gaming news lately. The head of Steam has been talking about possibly moving to Linux eventually because of Metro and Windows 8. Some bigwig at Blizzard agreed with him about the problems (if not the moving).
I mean, it's essentially trying to take the regular Windows UI that people have been using since well, Windows existed, and turn it into something aimed at touchscreens (or ironically, AOL from the mid 90s). Desktop PCs and touchscreens just don't really mix well, yet MS is going to try to shove it down people's throats. It's possible they are having second thoughts about it.