Need to teach the human factors that lead to making decisions that lead to stall/spin accidents (including the instinct to level the wings when actually it is a lower priority than reducing angle of attack) rather than draw pretty pictures in a briefing then go up to 3000 feet and start yanking around on the controls and putting the aircraft into unrealistic attitudes.
If an instructor is teaching a fully developed spin recovery (ie full opposite rudder) in an incipient spin scenario then they are probably just copying what thy were taught and haven't gone below the thin veneer of rote learning that is all that is required to become a flying instructor.