I watched the game, too. I can't say I paid too much attention to Duke's players and coaches, but it seemed to me to be a fairly mild court rushing. Compared to the Gopher game, where our players didn't have a chance to shake hands with IU's, I did see the Cavs and Blue Devils do some hand shaking. The definite impression I got was that the Duke players weren't too affected by the Virginia fans.
When I heard the K sound bite the next morning, my first impression was that K was incredibly whiny and being a bad sport after a loss. I still feel that way, and my opinion of him has gone down (even further) as a result. That said, the more I've thought about it, it might be best that he did say something, just to get the conversation going. They had a good talk about it on 1500 the next day, including pros and cons of "allowing" the rushes. They played an interview with Dakich, who once lost a key player to career-ending injury in an on-court celebration when his own fan jumped on him. Even so, he's quick to defend the occasional court rush as part of the game and a welcome difference between college and pro.
I think the key word is occasional. As an engineer I know that every risk analysis is a statistical analysis. The more these things happen, the greater chance there will be an unfortunate outcome. Granted you can have an unfortunate outcome crossing the street, but you do want to keep your risk to an acceptable level. My concern is that these things become so commonplace that accidents will become semi-regular. (And that doesn't even consider damage to the floor from street shoes.)
Back to K. I think there was a way for him to say what he said without being so whiny and sounding like sour grapes. That's one of the things I appreciate about Tubby - he's a leadership figure in the sport and cares about the sport as a whole. That might be the same for K, but he just sounds like he's out for himself and his team.