It's a sad fact that many people who use the slops simply do not understand the rules. As an experiment, I asked someone who I trust, who I think has good judgement, good moral character, who typically skis about 10 days a year for more than 20 years, to view the video without any context or discussion. I then asked who was at fault. And without hesitation was told, "obviously the person on the snowboard". I had a hard time believing what I heard.
It would be interesting to see the video presented without context or discussion of the rules and then poll viewers to see who they think is at fault. Then see the data from the polls.