There has been lots of analysis on whether the rioters were 'hockey fans' or not. The received wisdom has been that a small corps of anarchists and troublemakers were the cause of the riot, and the vast majority of the rest of the crowd didn't participate.
In reality, the imbeciles who took pictures and milled around and cheered and went from one hotspot to another gave the troublemakers cover for their actions and impeded police response. If all the "good people" had given their head a shake and left for home, the rioters would have been isolated and rounded up, or at least forced to relent and scram.
The Kissers explained how they 'suddenly' found themselves in front of the police lines, were overrun and thrown to the ground. We're supposed to feel sorry for them a little, yet they were participating in an unlawful assembly, and had been read the riot act (literally) over Vancouver Police Department loudspeakers. They had been told to go home and chose to enjoy the spectacle. They aren't victims, they're not romantic, they just insisted on remaining in the wrong place at the wrong time.