So if some overweight guy puts on point shoes, and moves his feet, it's all of a sudden called "ballet"?

No of course not.   I was just saying that the dance moves are the same. And I wanted to know if the ones in the Chinese dance were also considered immoral.

The dance moves are NOT the same. 

They do have some similarities to other forms of dance.  I know because in my youth i could have done those dance moves, yet i was never trained in Ancient Chinese dance.  My point is that the music and clothes effect the sensuality of the movement.  If that dance of the Chinese dancers was done in tutus, then it would be immodest.  But go ahead and put it down based on being literal.