The press doesn't care about Halo and God of war? Really?
I didn't say "the press," but I am referring to major and local news outlets. There are many different reporters/newscasters that cover this event that aren't focused on gaming and only feature generalized information. If all you do is feed them "mature" games, then they're less likely to promote anything from the event. Having worked for a couple local news stations, I can tell you that these "kiddie" Kinect games will get longer coverage on morning segments, and increase sales when parents see what their kids can do with the 360 and Kinect. Mature games get quick blips about release dates and sales numbers, but no live demos or reviews.
Showing some variety was in Microsoft's favor and they did at least show better examples of why Kinect was created and deserves to be further supported. I didn't personally see much to get excited about, but I'm not really expecting Microsoft to always carry the torch in software.