The well of circular reasoning never runs dry. It is you who started this thread with the ridiculous statement:
Your statement is categorically false.
I came from a very successful high school track program. My college track program was equally successful. In fact, the school was renowned for its biomechanics and exercise physiology programs. I was one of the first professional runners in the professional era of track. I was a top 10 world-ranked steeplechaser. I set American records. I set American records on the road. When I wasn't setting American records, I was missing by fractions of seconds. When I wasn't missing American records, I was the straw that stirred the drink in races in which my peers were setting American records. I was also a top XC runner, and competed successfully in events that ranged from the 1500m in Bislet Stadium all the way up to the marathon in New York City. My slowest marathon is 2:13:44, the third marathon of three in twelve weeks.
In summation, I have been coached by, and known, some of the best coaches who have ever lived. I've also trained with, and known, some of the best runners this country has ever produced. With over 40 years of experience across the strata of coaches, athletes, agents,etc, at the highest levels, NOT ONE OF THEM has ever said that there is a correct way for the foot to land. Not one of them has ever suggested that me, or anyone else, should run barefoot. Yet, in your tautological death-spiral, you're asking why no one teaches anyone to heel strike?
You don't see the absurdity of your question?