IMO the best way to do this is to gradually enforce these rules from the lower levels and work their way up. Strictly enforce it in travel ball/HS first then move on to college. Hopefully if they do this there would be very little need to
do it at the college level. For a college pitcher to change might be "easy" mechanically but would probably do a job on them mentally. If they all of sudden called it on Barnhill everytime in the Regionals what do think the outcome would be? Would she even be able to pitch? Not necessarily fair to somebody who was made to think it was ok to pitch a certain way for 10+ years to all of a sudden tell them they can't do it anymore. Not sure diluting the game at the highest level first is the best way to grow the game.
Kind of the tail wagging the dog. The top level tends to lead with the bottom following along. If the NCAA were to announce that instant replay will be used starting zt Regionals next season and would include IP's, the correction would be quick and complete.