Should Twitter itself get a state sponsored label for getting concessions from San Francisco on their headquarters? https://www.sfgate.com/bayarea/article/S-F-controller-hails-... Should Elon's account (or SpaceX or Telsa) have the same label because of their significant government funding? It's hard to see this as anything but silly politics games.
Twitter, SpaceX and Tesla are not newspapers/publishers. The reason for labelling news organisations' government affiliations is for the viewer/reader to understand that there may or may not be bias, and where the funding is coming from. If NPR's government contributions are embarrassing for the organisation, it might be best for them to forgo that funding. Additionally, if there's no influence/bias, then why does it…
Making NPR display its funding sources for all to see is a good thing (although "state-affiliated" was not the right label). Not making other high profile accounts do the same is pure hypocrisy.