Comment by AdieuToLogic

From the article:

  I work as an Engineering Manager ...

  If you try to end at 1:55pm, you will likely talk until 
  2:00pm anyway, which then runs into the next meeting.

This is more a statement to the lack of respect for other's time than anything else, as evidenced by the presumption; "you will likely talk until 2:00pm anyway."

Engineering Managers which see value in giving coworkers a five minute break between meetings ensure the breaks exist. Those which do not and only pay lip service to the concept will burn through predefined breaks no matter where they exist on a clock face.