This is really a confusing situation.
The most important thing to note, as other people have noted, is that the game would cost much, much more than 2 million dollars.
My guess is that Sony had pledged to heavily fund the creation of the game if it managed to meet its Kickstarter goals in return for console exclusivity. My guess is that they fully expected the game would get funded, and if in some crazy universe it didn't, Sony would find a shady way to pay for the rest of the Kickstarter campaign.
It's also important to note that other console versions aren't included in the stretch goals, which is usual for Kickstarter games like these.
So yeah, this might be some crazy marketing campaign. Or maybe it isn't. I have no idea.
Edit: As a potential idea, perhaps Sony is using the Kickstarter as a means to guage interest in the game. Perhaps they have a funding model that is dependant on how much money the game makes in the Kickstarter. So if, it makes 2 million dollars, Sony will fund it an addition 8 million, if it makes 4 million dollars, Sony will fund it with an additional 16 million -- or something along those lines.







