In the US, the problem is most of our large media is owned and operated by large corporations with a few (usually right-wing leaning) owning individuals. These corporations are also the defacto power behind our government (see $ spent on lobbyists, campaign donations, Citizens United, etc). Unfortunately these media sources aren’t going to be effected by this new policy.
But they could be! The same organizations that Twitter is using to define “state run media organizations” also keep track of US media corporation ownerships and could be tracked against ones that are attempting to slant public discourse via story selection, etc.