Illegal pitch?

[Dakota]

ASA Rules. 14U travel team.

I was BU, and it took me awhile to figure out what this kid was doing. It looked illegal, and technically it is I guess, but would you call this?

Here it is:

As she pushes off from the pitcher's plate, once the pivot foot is away from the plate, she twists her foot sideways at the ankle. She is not "leaping" (dictionary definition) since she is only pushing forward (no discernible upward leap), but she is definitely "airborne" (both feet not touching the ground, even allowing for the hole in front of the plate) and therefore by rule definition, "leaping". Basically, her pivot foot loses contact with the ground because she is not keeping the toe pointed down.

So, would you call this an IP? I let it go.