I agree. They've also optimized it so that it won't "listen" to the TV, so people can watch future xbox events and not have their console freak out when they give the Kinect commands on stageFrom watching the MS press coverage I have a feeling that Kinect voice commands will be a little smoother than they have been in the past. Watching the Project Spark stuff, the guy was talking pretty 'conversationally' with the game in order to do things. Coupled with how the new Kinect seems to be optimized to hear ONLY the voices of those in front of it, I don't think we have to worry about someone yelling 'XBOX, OFF' and turning everyones (and his/her) console off.
I was impressed with the fluid voice control for Project Spark. I have to wonder, however, if Kinect is still going to keep the "You are the controller" tagline, or if they are going to rework that to better reflect Kinect augmenting the experience with an actual controller.