You understand that people who are victims of abuse, especially sexual abuse, are often afraid to come out, to tell anyone? What you are calling evidence of being fabricated is a symptom of abuse, and people who are trained to understand and report on those types of abuse are also trained to do so from victims who will go so far as to deny it had ever happened.
For your own benefit, please read this National Domestic Violence Hotline article on exactly why people's loved ones never share that they have had situations worse than Reeve alleged. Yes, it's about domestic abuse and not workplace abuse, but it is the same type of trauma and helplessness.