They've gotten a lot of votes now, and are on the actual website's page.
http://t-aradance.jp/movie/Still not sure if they're counting multiple votes from each account, but I think they must be, or else there's some pretty rampant cheating going on by that 7 year-old's family. Especially considering that her video only has 1753 views, but she has 683 votes.

In a way I feel a little bad voting for them in this contest since they have a production company backing them while most (if not all) of the other competitors are just random citizens.

But then at the same time they do definitely dance it better than the others, so whatevz~