Yes, but stoicism also preaches wisdom and being a good citizen.
It is natural for humans to form political systems and it would conform to nature to participate. It would be completely in line with the philosophy to protest, have an opinion against exploitations, vote someone they politically align with into power, and even revolution.
However, focusing on the depressing aspects of tyrants stains the mind and will lead to a loss of self discipline and will only allow the tyrants more power over your mind as they can keep you in a reactive state.