There is an existing prejudice against Rakhi & in my opinion a very justified & perhaps deserving prejudice. Rakhi and Abhishek may be great dancers, but they would be the last people I want to see erected as national dancing icons. And as the audience, I have a right to vote for anyone. So if I vote for Sanjida Aamir just to make sure that Rakhi doesn't get to win, that's my prerogative.
I think Sanjida Aamir did deserve to win - in my view and anybody who is trained dancer will agree Sanjeeda is a better dancer that Rakhi; Abhishek is a much much better dancer than Amir - but at the end this is a popularity show for the best couple. And half of the times, I dont even feel that Rakhi Abhishek is a couple. So if Sanjida Aamir is liked by audience as the better couple, they do deserve to win.