Simple point is Inder is an adult who was also given responsibility of Sahiba. And Sahiba was indeed kept in dark about complications, however I am not sure outcome would be different even if she knew, because she went to save Inder, she would not sit in car to save foetus if she knew complications and Inder was in trouble.
If whatever happens to Sahiba is consequence of her actions that were not due to malice or anger, just a desire to help orphans. I hope people agree what happens to Angad wrt his biological child is a consequence of his actions.
Because just like Sahiba could have done things differently, Angad can also do things differently. (Not expecting it, he demanded divorce first and got angry at the thought of Sahiba filing it first)
And yes, if they treat her like a criminal when they send cold blooded criminals who tried to burn her alive to rehab then their love for her will be questioned, if there ever was any and how much of it was for purely selfish reasons.