If pilot representatives had pushed that point aggressively at the time then is it not possible that an understanding could have been reached more swiftly?
"Understanding" will only occur when the body count gets unpalatable. Why do you think nothing has happened up until now, let alone in the 6 years (your number) between 75/76 and the Deathstar? With the fundamentalist magenta agenda still in full force, reason will not be listened-to.
Besides, the pilots of those early magenta days were seasoned hand-flyers/brain-users. It takes years before the skills of the old hands atrophy, whereas the Children of the Magenta never had them.