This was a business decision, sure. It was well played by Microsoft, Square Enix and Crystal Dynamics. But it was still a dick move from them. From their Tumblr:
"Today’s announcement with Microsoft is one step to help us put Tomb Raider on top of action adventure gaming."
But have you realized that Tomb Raider could on top of action adventure gaming by, I dunno... making it available to all of the gaming community, who will buy, play and cherish your game? By purposefully alienating the PS4 and PC fans, you are basically choosing money over the loyal fans on those platforms. Sure, it was a business decision, but personally, I don't want your business anymore CD.