You can make excuses until you’re blue in the face, but the simple fact is that people were misbehaving in a dangerous environment. Anyone watching that video, who has expertise in seamanship and boat-handling, would tell you that it was a disaster waiting to happen.

Too many boats in too crowded a space, driven by too many over-excited (and possibly alcoholically-over-refreshed) people with too little regard to proper seamanship and boat-handling skills. End of.