John Mayer respects the work of quality type designers. The clip that has been going around Twitter from Red Gaskell is good, but it is worth watching the few minutes surrounding it from the interview to get the full context of what he is talking about. Mayer is right: great creative work comes from caring about the details, and that includes the choice of typeface.
It is dispiriting to read the bad faith comments at the top of that Twitter thread accusing Mayer and type designers of creating barriers to creative work. That is nonsense. It is attention to detail that creates better work and more of it.