The problems with punitive actions after an evacuation are manyfold. Someone, presumably with the airline, would have to make positive the identification of the offenders and record the violation.
So taking the recent Birdseed incident in Las Vegas, but let's suggest such an incident were to occur in such a country as Nigeria, whereas most of the passengers would have been British committing an offence in a foreign land.
Any subsequent international legal action simply wouldn't work.