Over the years I have met a few instructors who seem to have developed their own personal theories and whacky techniques. After gaining my PPL I did a check ride at a new club. I could land light aircraft perfectly well using the normal techniques but this instructor insisted on applying a hefty burst of power during the flare to 'soften the landing'. The resulting landings, even his demos, were always ugly. Even as a fairly new boy, I wasn't comfortable with this guy's instruction.
Instructors vary. Some are experts in their field, some have very little experience, and a few seem to have lost the plot. The chap in question in this thread seems likely to fall into the latter category. If you have doubts speak to another more senior instructor or the boss of the school/club about it.