I actually have a theory on this. I don't think it was a coincidence that Shera track started right before GTNHP was axed. I am 100% sure that channel has talks with both CVS and decided that THR has more story potential than GTNHP. That's why THR remained on air over GTNHP even though they have sams TRPs.
I feel THR CVS now know that they are safe for timebeing but if they wanna remain safe, they have to progress with KalMa's story. KalMa was their main selling point. Even now, if you see TRPs have remained the same. So existing viewers are liking the track. Issue is that they aren't attaching new viewers. That I feel is due to highly competitive slot and not enough focus on right kind of drama. If they bring Anu back, track will be a hit.
You are absolutely right.
Anu being missing for a long while is not going to do any good.
There should be the right kind of reaction from Anu's part regarding this sham marriage of Sarthak and Avni..
Instead she's missing.. So it's not having the effect or impact.
A tashan between Avni and Anu and Anu winning by herself would bring the desired drama