Because our national federation is a weak and corrupt organization that only cares for sprints and throws. They don’t give a damn about young athletes, especially distance runners, and do not sponsor nor coordinate any meaningful development programs.
I also want to add that they sold out to Nike. In doing so, they will never do anything to upset their benefactor like steal the thunder from NXN, NIN, or NON. So long as we continue to acquiesce to corporate entities and for profit event organizers, US distance running will never realize its full potential.