I love all the people raging over something that's this optional. If you hate the dances so damn much, don't do them, you can get through the entire game and not dance once. And if THIS was the deciding factor in you quitting, well, get going, there are over 10 million other players so you won't be missed.
I for one like these dances. I kinda figured the female dance was going to be this, as it was a matter of time, and the male, he looks like he's just having an absolute blast.
And let's be honest, the blood elf males dance like Napoleon Dynamite, the Undead headbang, the male humans disco dance, the female humans do thew macarena, the male worgen dance like Justin Timberlake, the male dwarves do a russian hat dance, , the female dwarves riverdance, the male trolls do capoeira....... did you really expect them to NOT reference something cultural or an internet meme?
Besides, Blizzard evidently likes these, used them, THE END, and no whining from people who would complain no matter what will change that. Fairly certain if they used a traditional chinese dance you'd accuse them of stereotyping.