RCTechnique - an old, ancient view of safety certification which claimed a piloting contribution in meeting requirements.
Long past its best-before-date, but with Boeing's policy of Grandfather Rights in the 737, and their design philosophy it was been retained.
Hindsight reminds us that human involvement cannot be quantified or prejudged.
Pre 1980s
https://www.dropbox.com/scl/fi/7wivz...=z97cebal&dl=0
"Boeing shackled to the past - man or machine."
Others consider the future - man and machine, together.
But who will embrace the next change; not a step jump, but a slow evolution so as not to disturb the current levels of safety.