I have tried to study the jump stop extensively (hence my name) as I teach it to young kids. The smaller girl in the video comes much closer to "gathering or catching " the ball with one foot on floor than the taller girl. In fact at 2:14 and 2:45 you could make an agrument that one foot is on floor as she gathers.
With that being said, at full speed it is impossible to tell, only if I pause it can I determine. My point is unless it is blatently obvious that one foot was on the floor while gathering the ball you can't be for sure if it is a travel in this case.
I even made a video
http://www.youtube.com/watch?v=29Nvnsy3Ivw