Unless you paid £54.99 for the game.
The article does not. It refers to the fact that Kinect was implemented long after development commenced. The article is a piece about Child Of Eden with regards to new motion control technology as platforms, not just about the game's existence, and the fact that PlayStation Move is yet to have a game that's as well suited to it as Child Of Eden to Kinect. Child Of Eden almost seems created bespoke for Kinect, despite the fact it was not.
I agree with you, in that the...
Two FPSs have come out very close to each other. One shows genuine innovation and inventive use of the genre. The other shows the same gameplay we've seen since the Nineties but with better graphics. I think there's a point to be made there about the genre and how it's being handled by different companies. It's not a schoolyard argument, it's a valid point.
Although the title does suggest otherwise.