Several problems with this scenario that make this concern stupid and moot to everyone except the ignorant.
- Headset in box makes the possibility of people having voice through their TV less likely. - The persons console would shut off as well if their Kinect is connected. - The Xbox has a timer for destructive commands like that. It counts down letting you cancel.
And here is the best one...
-The Kinect listens to your voice only, not the voice in the TV. It actually has a lot more noice canceling (from tv and environment) than the previous version.