I think for the most part, these are just coaches being excited. When ic coaches, I would jump up and down and get super excited. I knew all my excited marks: When Stunts Hit and when Pyramid Dismounts. The guys in the video, despite at one point laying on the ground (wtf?) seemed pretty genuinely excited for their team and responded how I feel a majority of the coaches in this industry do when cheering on their teams. The girl in the video, however, is hardly cheering on the team as opposed to putting on her own show. This is the coaches box so whoever is videoing is clearly another co-coach and you can hear them laughing most of the video. This to me, signifies this was premeditated and NOT About cheering on the kids, but making it about the coaches and attention of the coaches.
To be fair, we don't know the circumstances. Maybe this team had a rough season and the coaches said "We will go absolutely H.A.M. and Ridiculous if you hit your routine this weekend" in which, we know as coaches, we would pretty much do anything to get our kids amped up and to do well. I've worn a pair of zebra spankies once and it got me a full paid bid ;-)
However, assuming that was not the circumstances, I think home girl needs to tone it down and rethink where the crowds attention is. Yes, judges will be professional and watch your kids, but why not have EVERYONE (including spectators) be focused on your KIDS PERFORMANCE as opposed to your own.
Point of the matter, if their co-coaches video taping werent laughing at this behavior, I may have a different perspective but since they are dying laughing, its clearly out of the norm and was made to put on a show.