Well I can see why they would do that. Nobody already playing on Playstation will complain about this, I mean why would they,they're getting everything and thus are happy? Meanwhile you convince the undecided (owning both platforms or none yet) to go with Playstation. Best case they hope for is to convince Xbox players to jump ship and join the PS ecosystem.
Its amazing when most of the positive responses to this news is "fuck you, got mine"
Amazing
EDIT: I'm hoping with it not just being xbox being screwed over this time (pc) there is enough of a noise about this that it is a constant sore in their side