Also, Varun Rajeshwari got out because Varun forgot his steps. They were not voted out. In fact, if instead of being the judges special, if that episode had to be decided by votes then VR might have not left the show at all. Narayani Gaurav were voted out by dancers inferior to them, by fellow competitiors. Its easier to be dignified when you're the people who are standing around you are upset at your going, not the reason for it.
Finally, I thought their attitude went with the song. Didn't find it particualrly angry too. Thought that the steps went with their grunge look and the lyrics of the song.