I suppose over the years if the significance of an act is not understood then attention to that action will slide
This is a key observation, both in this case and in general. Many Tech Pubs are written on the premise that the target audience is fully trained, to a stated level. Much is assumed. If you stop funding training, or start recruiting people who have skipped 5 grades, then serious funding is required to re-write the ATPs for the new target audience. This was notified, to my knowledge, in about 1991, promptly followed by a nearly 30% cut in funding and an instruction to stop ATP amendments.