There has been more levied, than just "he groped someone some time," including persistent and pervasive workplace harassment of verbal, physical, visual, and conceptual natures. The person who brought up PTSD, which was a clinical diagnosis, wasn't saying "he grabbed me one time." But, regardless, she doesn't need your approval for a medical condition, that's what doctors are for. Unless you're her doctor, or actually know her case, how are you making a diagnosis sitting on a message board?