I remember mentioning in one of my earlier takes about how Anu is being selfish in wanting to end her life. But we can't blame Anu too, she was in immense pain and she felt delaying her demise is adding to her family's woes. There was a gain of truth in her way of thinking.
Anu would have never imagined that the manner of her death would create such a divide in her family. Yes, she should have left a note or informed the doctor of her wish to die in peace instead of suffering. Guess, she wasn't thinking too clearly at that point in time due to her pain.
And Ram agreed to her wish only after the doctor said there is no hope anymore, these facts are not known to Disha.. When Disha learns of these, she will surely undertand and supoort her father,
But the show needs to show this bitter truth I guess, some sort of lesson about taking extreme action without thinking about the consequences.