Don't be confused: this is pure virtue signalling by Cogent.
If you think that limiting a population's access to imported goods can lead to regime change via "grassroots change", just look at the myriad of counterexamples: Cuba, Iraq, Iran, Venezuela, Syria, North Korea.
The sanctions imposed by the governments against Russia make sense: they aim at crippling the state economy to prevent Russia from waging war and dismantling the power structure by pitting elites against each other.
But limiting access to information for ordinary people is a completely empty gesture that brings no value into the world.