That kind of instructional technique is not confined to the military...
Whilst line training with a well know North Sea operator i spent 20 hrs with just such an individual who took me from happily above the curve down to barley coherent. He would constantly criticise every action to the point that you spent so much time listening to him berate you that you then made another cock up - which he would then lambast you for........ ad-nauseum.
As for wanting to punch him.... He'll never know how close he came to being mowed off his bike on the way home one dark rainy night. (Seriously! - i actually accelerated towards him before i came to my senses).
But....... I look back now and i did learn from him - not the stuff he was trying to teach me, but important things none the less.
I met the retired head of the training school shortly afterwards and asked - "why the f*** was XX a line trainer?" - his response - "you come back in ten years and tell me".
OH