I was super happy after seeing the promo.
TV shows are fictional. Some amount of creative liberty is allowed. But in the name of creativity you cannot mock some serious traditions - such as marriage. People think swapping brides and such nonsense is absolutely as long as it is happening with the leads of the show. It is probably an entertainment factor to many. To me, if is absolute mockery of a beautiful relation that is mainly based on trust. Although it is arguable that a forced marriage may not have the strongest foundations in "trust", at-least you know what you are getting yourself into what the odds are.
My only requirement in this track was that Shivika should know that they are marrying each other. And the promo clearly indicates that they do. There as to be some dramatic element to ensure that the story continues to remain gripping. I am willing to watch whatever it is that they think of now.