I've observed this with my family, friends and some of my online friends too.
There was too much drama and viewers have seen the worst in the past few months. Now I think they have grown immune to twists. Especially after Basanth and Shiv exit the story lost its impact on viewers. Previously I've seen people around me feel for characters esp. when Anandi Shiv & Ganga Jagadish are in sorrow or facing any difficulty. They used to wait for the suspense to be revealed.
Previously they were sad when Basant and Shiv were killed. Now they simply don't care!
They are like ...'Whatever you want you can show...I'll watch if I find some time and only if there is something interesting. Else skip the episode.'
Anandi's daughter kidnap and her child marriage, Nimboli torture by Harki, Ganga Jagadish misunderstandings, Kundan trying to get close to Nimboli, Kamli marriage with Pushkar after seperation from Gopal. All these had least impact on viewers.
Now they will kill Gopal but I think people wont bother much.
Anandi sorrows and tears, Ganga tears etc. etc. have lost their effect.
Anyone observed the same with people around them who watch Balika Vadhu?