The work to marginalize/sideline those texts was already done by many others over an extended period of time, GP was just pointing that out (and pointing out why they have done so).

I would be happy for you to say that Supernotes is not a note-taking app if instead you felt it was more of a knowledge-management app or a digital zettelkasten system. Note-taking does mean different things to different people. Some people don't think it's effective note-taking if you're not doing it with pen and paper.