Phil Spencer is just amazing, he really has turned Xbox around after what Don Mattrick did, its a shame they got off to such a rough start, but I think everything they are doing is in the right direction. Being able to play Xbox/PC I think is huge and will really be a selling point going forward.
People need to realize that the new Microsoft isn't about "xbox one exclusives", its about PC/Xbox because turns out, both are Microsoft platforms.
And no, its not butchering the Xbox audience moving games to PC, the people that have powerful gaming PC's are not very likely to buy Xbox to begin with.
The move to unify the platforms is fantastic, because it means that people with Xbox can still play with PC users, and you can play with your friends without having to put down on an expensive gaming PC.