Yeah I think the OP is wrong. Even just by looking at the cctv 500 seems way too high. Obviously could be an illusion due to the angle, but even in that clip it’s not like there isn’t empty space, and to fit 500 people on there they would have to be right on top of each other.

I bet it was more like recommended capacity was 100 and they had 150 on there. But that’s definitely a failure on the bridges end. People aren’t counting heads as they’re checking out this tourist attraction. Something like this shouldn’t have been possible from just a handful of extra people who got a little roust.