She has been called cheap and servant class by the children of SS, but she never once tried to defend herself or even throw a GLARE back at any of them. She didn't even call the police and report Shakti when he threw her son off the bed. If anything, we have all seen Amma use cheap language and behavior to instigate her sons as well as physically abuse her then-expecting daughter-in-law. Compared to the wife of SS, Shakuntala is a princess. She may not deck herself in gold jewelry and fine threads, but she acts with dignity and decorum. She never threw it in their face that her son was the son of SS.
When she came back to collect her belongings, and went up to Krishna to apologize and beg his forgiveness, I was really ashamed of the whole family apart from Pratigya. If you saw that scene carefully, after she asked him with every ounce of humility she had, Krishna couldn't even look at her. It isn't what she did to him, it's what he did to them. You could tell that at least he had some regret about what was happening. He doesn't approve of them staying there, but he doesn't feel that Shakti and his violence is right either. And when face-to-face with the victim of his bonfire from the day before, he couldn't look her in the eyes. He didn't reply and say yes, "I forgive you." But he didn't say "I will never forgive you" either. This is because he knows most of the fault is his father's, and even some of it is his own family's. And this closing scene is even more powerful because it happens right after Krishna brings his saintly brother home from jail. Where I am sorry to say, he truly belongs for reasons aforementioned.
Shakuntala promised they wouldn't trouble them, and there is absolutely no reason why I would think she would break her word. Of course, there is still time for this character to change colors, but in today's episode I saw a lot of substance. In her entire time on the show, she has always been this silent, passive character who hasn't opposed any of the Thakur's children. My goodness, how I wish SS had spoken up and said no Shakuntala, most of what happened is my fault. But it was more moving to just see everyone speechless. This woman, has never lied or tried to cover up her faults. If any mess has been made, she is attempting to clean it up. That is more than anyone in the house has done, apart from Pratigya.