Because our favorite Avatar girls need a video to show off their awesomeness.
http://www.livevideo.com/video/5FBE172FE5304C8792AEA24BF0DE3E1E/miss-independent-a-toph-kata.aspx
Very mild Tokka, and a little more Kataang, but most of it is about the girls themselves (hence the song "Miss Independent" xD).
Timing is awesome. That is all.