I totally agree with u
Really glad that CVS didn't pursue that track. As much as like the actress playing Sampada, I am so so happy that her character left the show cause I would have absolutely stopped watching if the CVS tried to show a track where Malhar even considered choosing her over Kalyani. As for Moksh, Kalyani has already fought her and the world several times to prove that she loves Moksh the most. So another biological mother vs. real mother fight between them would be boring and annoying to watch.
Madhuri's case is much, much different than Sampada's. Sampada gave up her right to be called a mother when she ditched her son for money and her ego. But Madhuri didn't do that, she was a good mother to Kalyani. Maybe she was a bad wife, and she really wronged Anupriya, but she was a good mother. She just happened to die and Kalyani formed this bond with Anupriya.
And they also completely utilised her character even custody case drama also done kalma separation BHI agayi uski wajah seh everything , and her character was redeemed at the end and sent away , so no need of her returning back