Exactly the same point could be made of any number of member states. It is highly questionable as to whether the authority of the central governments of Afghanistan or Pakistan extends into much of their territory, it certainly doesn’t in Iraq or many of the nations in central Africa.  Much of Latin America is under the control of warlords and drug barons but nobody would suggest that they should be represented at the United Nations. Effective political control is ceded to devolved authorities in many nations but they are not recognised as states. Political confusion is no reason no ignore the existence of a state.