This sort of marketing tactic makes me lol. From the Kotaku comments...

Quote Originally Posted by -Silver-
Congrats, Microsoft and Square Enix! Hope the smurfton of negative PR and pissed off fans you just generated by the way you handled this "announcement" and "explanation to fans" was worth the 3-6 month exclusivity deal. Next time just take a leaf out of Sony's book and go with "first on Xbox" or "console debut on Xbox", and don't say "PC and PS4 gamers can play the older game instead!"