I think you're misinterpreting how mass protests work: unlike, say, a strike, the goal doesn't have to be to directly apply pain to the target until they yield. Instead, a large scale protest demonstrates, first and foremost, the ability of the opposition to organize (lending credence to the threat of further, more extreme action), and to pull more people into the organized opposition.
Yes, I totally understand the principle, but the persons creating the blackout are themselves entirely optional and they don't seem to fully realize this.
Protests are much stronger if you have a viable alternative lined up. They don't have any.
A two-day blackout is a warning shot.