I feel like people are in denial over her being ill. She developed a mental illness during the adolescent period (up to 25), which was evident in her behaviour while she was with Kevin, and her subsequent mishaps with the children as infants/toddlers.
Sure, her team shouldn't have had her working, especially during the later stages, but I don't believe that not one close family member or friend (not random make-up artists etc) wouldn't speak up for her, if she was being drugged and held hostage like a puppet.
It seems that it is difficult for people to accept that she is very ill, and sometimes people don't recover from mental illness, and still act in abnormal ways even when they are medicated and being 'treated'. My mother is a psychiatric nurse, and I remember her telling me of a patient who was discharged, returned home and subsequently boiled her children to death in a large cooking pot.