The lap of honour was cancelled a short while after the match because of the pitch invasion. A lot of people had already left before the announcement came out that it was cancelled.
The overwhelming majority of fans will not be desperate to watch every minute of the Burnley match.
I suspect a large chunk of that 30,000 won't be so eager to hang around.
-I remember at Withdean in the final year when people didn't hang around for the lap of honour.
-A lot of people will have left on 88 minutes any way
-Some people will take the attitude it doesn't matter what the game is...