Some people are of the mind that anything less than firebombing an oil refinery is not taking action. We need both people firebombing oil infrastructure, AND people protesting in the streets
It appears they were partying before the protest even started
As for taking pictures and recording, it's not every day you see a protest so it makes sense to record it (the person who made the original source also recorded it)
There wasn't much laughing - at most there was the odd smile. There was one bold guy who was laughing but the vast majority were just using the balcony like a normal person would