Thank you for that link!
See here:
http://www.youtube.com/watch?v=LxUx96-6-dw#t=692
I haven't seen this review until now, but the guy came to the exact same conclusion I did! And his thought process is quite similar.
Obviously, the biggest giveaway was the Xbox controller and how the whole game is designed around it. In the earliest dev videos many months ago we could already see, when they presented some gameplay they always used the xbox controller. Not a third party gamepad, not a joystick, not keyboard+mouse, but specifically an Xbox controller. Coincidence? I don't think so. But there are all the other clues: low res graphics (text on screen is only readable at 720p or lower), botched joystick and other controller support, restricted FOV (around 60, perfect for TV), unbindable and missing hotkeys, drastically simplified gameplay, etc. These are not even speculations, everyone who played the can see it for themselves.
Again, as damning all this sounds I still cannot draw a straight conclusion on what exactly happened, so all this remains mostly a mystery... unless some dev wants to step in and clear the air...