Which they obviously weren't doing and hadn't been doing --- this wasn't the first game where beer and objects have been thrown at the players.
The players are suspended --- which is fine --- but they need to arrest every single one of the fans who were throwing things. There was sure a lot of that going on even while the players were making their retreat to the locker room. The fine for the fans needs to be every bit as large as it is for the players and they can also lose work time while they sit in jail waiting for trial. As for security --- they also should be fined. Apparently they were standing together in one group -- not doing their jobs at all.
I have no problem with that .. if a fan gets out of control and causes a riot .. they are equally responsible and should be held accountable for their actions