you miss the important aspect here - her opinion of the situation is formed after having been traumatized and as such may be the direct result of the trauma. I'm not a psychologist, and it is just my layman understanding that treating a traumatic event as less serious than it really was is one of the coping machinery of our brain. Basically the perpetrator, among everything else, may have damaged the victim's ability to evaluate such crimes and situations in the way that untraumatized people would evaluate it. There is a reason why "the people" prosecute such crimes without much regard for the victim's opinion.