You're not thinking like a politician - you're thinking like the point is to maintain democracy etc. Russia Today will never tell people there's a genocide in Gaza, while TikTok does tell them that, so the latter is much more dangerous to politicians.
I don't know why politicians have this weird attitude towards Gaza, but they do.
Also, the propaganda on Russia Today supports strong governments, so your job as a politician will be safe even if they swing the next election. The propaganda on TikTok does not.