And the BBC is broadcasting their program on shortwave again — I don't think the classical way of thinking about sanctions directly applies to media type organisations.

Of course one could argue russian trolls could use this to influence opinions on twitter as well, but wouldn't the most scary thing for Putin be his Russians getting non-state approved information on the war and the situation in Russia?

If the goal of sanctions is to drive a wedge between the political leadership and it's population, and we assume it works in principle, excluding certain platforms where people can get outside informations might actually be a good thing.