I think the courts are so inefficient, not to mention limited to single countries, that huge "social protests" like this seems more efficient if you actually want to see some change, rather than the year-long process of going through the courts.
I do agree with you though, that every time these things happen I also get a somewhat sour taste in my mouth. Ideally there'd be better venues for things like this, but based on history it seems to be the most effective way, sadly.