What was his point? I don't know the 737, but the only difference is pulling/pushing the fire handle on any Boeing or Airbus I've flown. In the highly unlikely event that you need to restart the thing, it's reversible anyway.
A sim is a good procedure trainer but any instructor or examiner needs to point out that a lot of it is "best guess" anyway. Next time you get a sim TCAS RA, watch what the intruder does. It follows you. Would that happen in the real world?