I have no idea what the facts are in this case however I presume that any civil action would be on the basis of legal advice.
If this criminal behaviour had been perpetrated on another passenger, I would imagine a suit would have been brought against the carrier on the basis that it had a duty to protect the passenger (victim) from harm. I imagine the employee can expect similar protection.
There is little doubt that this lady has suffered trauma. Why is she not entitled to seek financial recompense in accordance with the advice she receives ?