I wouldn't brief the passengers to run towards the nose. The response before was more along the lines that should the FAs be asked, or wonder themselves, they have an answer - given all the caveats of a chaotic situation implied by an evacuation.
Yes, I know what fire fighters are there to do. Given I have sought out and discussed evacs with fire fighters, I should think this rather obvious.
My current company follows general UK practice, in that it offers no advice or training to any crew about how to advise or handle passengers once they are off the aircraft. This is implicit in some of the replies to this thread:
What happens after everyone is out is up to the insurance team.
Once your pax are out, they're on their own.
: attitudes which speak to lack of training and, dare I say it, lack of consideration for the welfare of the passengers when weighed against the chance of personal litigation.
I prefer to think a bit further.