If you think she made the wrong decision (which I think she did), it was still her choice, her duty to make the decision. If she did not see her future with Gaurav then she let him go... that's what the show is about...
All the moms look for a perfect bride for their sons and they eliminate other girls... but why is it wrong when a bride chooses her perfect groom and his mom?
I like Gaurav but I HATE Gaurav's mom. She is moody, judgemental, rude and very orthodox and I would never be able to settle down with her. She diregarded Swati because of her color?! I am glad she is out of the show because no one wants a mother in law like that. Even if her mom approved me (if I was on the show) I don't know if I would be able to accept her for being so condescending towards other people...