"The hypothesis is that if people are preparing for a recession then demand goes down, which pushes prices up"

This makes no sense at all. even the inverse makes no sense, if people preparing for a recession stopped buying goods, prices would go go down not up, which obviously would not cause inflation. This idiocy of saying that inflation comes from the people, and not from monetary policy, is depressing. It guarantees that governments will keep having a free pass to print as much colored paper as they want.