Ellen, The Today Show, PBS and the likes would be a far more appropriate stage to showcase some of those titles and it would certainly get far more feedback, than showing it to game journalists.
The main problem with the Kinect's limitations for hardcore gamers is crystal clear from the get-go, it does not work with 3rd or 1st person shooters, nor RPGs or action-oriented games, many sports titles, without them being on-rails, at least not right now.
The Kinect was programmed for the people to stay roughly in the same spot(or in close range), because you still can't make the characters go foward or backwards in a three dimensional space.
Kinect might have some interesting functionalities in adventure games, which could work, but it is such a niche market, even within the more hardcore crowd, that developement costs might be counter-productive.