LeadSled,
Not in my neck of the woods. In fact, it was a CASA FOI who changed my technique from throttle to mixture.
But I guess there lies the problem. No consistency from them, some strange ideas about how things should be done, yet they expect instructors to know the square root of the pickle. One of the major reasons I had to get out of instructing.
Lead, regarding your last comment asking whether the pilot did a good job, not sure if that was aimed at me or someone else. I wouldn't have a clue about that particular case, but I wanted to join in the debate about multi training. There was some strange stuff being posted, which needed balance in case any new or aspiring meta instructors were reading.