The key thing not being pointed out is that these papers are generally printed in a journal or as proceedings to a conference. So there needs to be a hard deadl

The key thing not being pointed out is that these papers are generally printed in a journal or as proceedings to a conference. So there needs to be a hard deadline by which the work needs to be complete, and seen as valid, for printing. So in that sense, there needs to be a peer review, because there aren't any take-backs at this stage.