Applying for (or activating existing) route authority is different from having approved landing slots at any given airport. Slots can be and are fungible to an extent, but no slot = no service, even if you have authority.

I don't think FT has a UN Permanent Representative. Only Observer status. Obviously the Secretariat haven't read OMNI, or else they would go home and hand running the world over to FTers. (Told you they didn't know what they were doing.)