User blog comment:The Milkman/Random Rambling: Should PS3 See Free DLC?/@comment-4224668-20121001011753/@comment-1786741-20121001013555

They didn't show favoritism, Microsfot simply paid them to make it an exclusive. Sony does it too, things like Read Dead Redemption DLC and the Joker dlc in Arkham Asylum are ones that come to mind.