I can understand why everyone is upset with Kavita's entry but we also have to realise that for the show to go on there has to be twists and turns and since Swasan is the current USP the twist will be concerning them only.
Ragini track's condition is so bad that it has become an overdose of psychopanti and will simply drown the show if not stopped. Even TRP aunties cannot tolerate this Ragini.
After that what? Swasan clear the misunderstandings and live happily after? The show simply ends at that point,
So they did need the twist and if handled well by the CVs, this could become a highpoint in the Swasan relationship. They could show Swara's unwavering trust on Sanskar, could show Kavita as positive and human, Sanskar taking a conscious decision that now he has only affection for Kavita and loves Swara.
All this could be shown very well and make for a good love story. But knowing Rashmi Sharma, Kavita would be a grade A vamp in cohoots with Ragini and Dadi and instead of some heart wrenching romance we will get more mental torture.
I am justing holding on in the hope that they handle this correctly otherwise there is always something known as TRP. Once TRP dips (which will if Swasan are butchered), Kavita would simply disappear from the show and we will wait for the next horror track to start.