[James]

It is generally accurate as the licence fee is a form of taxation set by the government.

However you have to take into account that the BBC are legally required to be editorially independent and impartial, and that is different from some other state-controlled media around the world.

The other legitimate complaint the BBC would have over this label is that it has only been (as yet) added to a select-few accounts. There are many more government-funded media accounts on Twitter, probably thousands if you include all the people that work for these organisations.