Darnit!!! I keep forgetting to take a look at the video when I'm at home. Now I'm really curious. Without having seen the video, Shooshoo, I can say that there are various styles of AT. Some styles, and some teachers, use a lot of spine flexing and hip movement. I had a lesson with a teacher who asked for a lot of that, and his wife dances a very...interesting...At. Don't get me wrong, she's a beautiful woman, a very musical dancer, a fabulous follower (from what I've heard)--she just has a very interesting style of dancing. I don't like it, but everyone's different. So...my point is...without having seen it...not necessarily. If it's working for her and her partner, it's not wrong.