Reminds me of my rock concert days. Poor security and planning, in my estimation. When you entice people with something they want at a certain time and then don't deliver, they're going to be pissed, and if you don't have the security personnel to handle all the people you pissed off, then...
Ah, yes. I remember a Doobie Bros. Concert at the old Hollywood sportatorium years ago. General admission seating. My brother and I got there early with our pre-paid tickets and were the first in line. By the time the gates opened, there had to be several hundred at that gate.
I literally felt myself get lifted off the ground and carried through by the crowd. It was - well, frightening.
I no longer go to general seating concerts.
(Sorry - I didn't mean to get off-topic here. But you can't really trust a crowd of strangers to look out for you).