I’m saying they’re lying
For all intents and purposes the plane is called “Air Force One”, although the name is drawn from the unclassified call sign. It is the common name used to refer to the aircraft itself even though it is not the technical nomenclature “VC-25.” F-15s are Eagles, A-10s are Worthogs, E-8s are Joint STARS, E-3s are AWACS, RC-135s can be Rivit Joint, etc.