I'm not really sure why this matters... People still bought an Xbox One for Titanfall, despite it being cross released at the same time on PC.
No one really buys a console for one game. If Titanfall is what pushed you to buy the console, then it's in addition to other games that you know will be released for the platform later on. For someone who doesn't like gaming on PC, it's insignificant whether or not they're on PC as well. But for those who do, it's important information.