There are no safety concerns as there is a strict queuing policy at the station so all that happens if everyone departs straightaway is longer queues and longer waits for the train but then as some have said if less people stay for a beer then there it becomes better as less of a queue at the bars.
Be even longer queues if 30000 head straight for the station or the buses because the club decided they had to gouge the fans at the bar. Short sighted policy to say the least
If everyone did decide to leave straight after the final whistle instead of hanging around for a beer and a chat the trains could cope with that. It would just mean bigger queues and a longer wait as the trains run at maximum capacity so in a way would the club care about the transport issues as...