Why does this term still exists. There are so many problems with the whole concept of the term and its use and abuse. This misuse has made the term not particularly useful anymore.

For more see:
Overpronation in Runners | Overpronate | Overpronation | Overpronation | Overpronation: Accurate or Parachronistic terminology? | My Advice if you Overpronate | Risk of Injury From ‘Pronation’