Sometimes there is no clear or a weak "chair". Furthermore, if the bullshitter is influential enough that you don't have time/capital in-meeting to call their

Sometimes there is no clear or a weak "chair". Furthermore, if the bullshitter is influential enough that you don't have time/capital in-meeting to call their BS? That's why BS is successful. I see the Amazon approach as an augment to the chair to keep the discussion on-topic. If it's not discussed on the paper, the burden is on the dissenter to provide info / present credentials to rebut.