And that simply flies in the face of common sense. Only the most hardcore post-modernist would deny that the NRA is a more political organization than the IETF. So obviously some dimension of "politicization" exists beyond just "acting in the world".
And if an organization wants to be less political, one way to do so is by relying less on political considerations when making decisions. With "political" simply meaning topics that are widely and commonly considered to be political. In the same way that the NRA is widely and commonly considered to be political in a way that the IETF is not.
You can debate about whether it actually is a lofty goal for an organization to strive to be non-political. Certainly there are many counter-arguments for why organizations should be more political. But I don't think you can deny that the dimension exists in some meaningful and actionable way unless you completely throw common sense out the window.