Yeah, keeping political content off the service must require a company-connected person to review every piece of content that reaches a certain level of exposure.
I don't think they are successful at keeping off political content though, in the sense that denying political content is a political statement itself in favor of the status quo.
They are quite unsuccessful at it. I often get very political content on my for you page - for some of my friends that's the vast majority of the content they get, and a good third of it is from either non conventionally attractive people or very obviously poor people.
The manual shadowbanning fight is one they will never win.
Maybe they changed the guidelines but note they were about politics in livestreams not just any video. You can review everything (including political content) with a simple delay in video discovery, live content is where it's not possible.
Don't have any illusions, they can easily control what goes viral if it matters to the mothership.