I agree completely .. I was discussing exactly this with some friends. The situation is most unfair on Myrah, if she really is Myrah, and not Paro ... she's single, young, rich, pampered, apparently well educated ... granted she is a little childish, but she seems very good at heart. Why pair her up with Rudra, a widower with a child, and with a very foul temper to boot ... just to be mother of his child?
And even if Rudra says he has fallen in love with her, how will he ever look at her face and not remember Paro? And how will Myrah ever feel confident that he loves her for herself, and not because she is Paro's lookalike?
If my younger sister or my daughter came and said she had fallen in love with a widower with a child ... and she looks like his first wife, I would lock her up.
Rudra may or may not want to move on ... currently he seems quite content with his memories of Paro ... but if he does ever want to marry again, either for himself, or for Dhruv's sake, he needs to find a woman who is like Paro in temperament, and not in face. And also someone who is willing to marry for companionship and not for love ... because the way Rudra is, he will never love anyone else the way he loved Paro.
Myrah has to be Paro ... there is no other way for this love story to work.