Well, I personally don't think he wants TF to be limited to one console. I can't imagine you work all that time creating something, and have the user base limited. I do understand the profit side to it though. While they could have made a lot more money selling it on all platforms, exclusives are a safe bet (guaranteed money, and less risk for a new franchise). And they got paid nicely out the deal.
But Vince seems like the kind of guy, that wants a lot of people to be able to enjoy this franchise. So I believe him when he says he wants TF2 to be all platforms. Although it's up to the individual to interpret what he says. I guess it doesn't matter to me, seeing as I'll be playing it on PC, and I own an X1. But as a fan of the game, I would like to see more people get a chance to play its awesomeness. And I don't see why someone playing it on X1, wouldn't feel the same way.
Unless we are still hung up on that console war bullshit. Who cares about that.