No fan of Russia, but to pretend that facebook is some neutral platform that isn't trying to push their own political agenda is naive.
Moderating away rule breaking content that most people don't want to see is very much akin to disallowing state-sponsored war propaganda: a good thing.
At some point, many free speech maximalists get driven into an ethical corner. This is one of them, and we discover that all of a sudden, many of them only support propaganda that they like. (But they will bend over backwards trying to come up with weak reasons for why bullshit from RT is totally different from bullshit from Qanon.)