In some venues, certain 'dancers' are known to perform tricks while dancing for their crowd.  The bad thing about doing such a dangerous stunt is that there is always the possibility of this...I'm not a professional judge, but it looks like this was done in the amateur division.  It just goes to show you that when your in the heat of the moment, you need to give it your all(Even if you land flat on your face).

Physically she is OK, but her pride and confidence will forever be hurt.