I appreciate your point, but what would be the difference to contacting a rape victim and advising them about the dangers of walking home alone, along unlit streets?
There's a time and a place to offer advice.
In my opinion, when you have a victim in front of you, all you should be doing as a police officer is comforting that person, and reassuring them.
Whether what the police officer has said in this instance is sound advice, in my view it's misplaced.
The timing is unfortunate, but it would have been the last contact from police so there wouldn't be a future opportunity.