Is there a new "best practices" technique for demonstrating stall recovery?
It looks like its related to this safety alert for operators that was issued back in may. You can find the full text from the FAA here but the pertinent chunk for the private pilot is... 


  (1) Private Pilot – Airplane ACS, Power-Off &amp; Power-On Stalls. With
  the exception of performing a thoroughly briefed full stall maneuver,
  a pilot should always perform the stall recovery procedure when a
  stall warning occurs