In addition to other comments see https://en.m.wikipedia.org/wiki/Ishikawa_diagram or the “new school” of safety engineering thats trying to get away from ideas like “RCA.” Sidney Dekker publishes an older version of his seminal work https://www.humanfactors.lth.se/fileadmin/lusa/Sidney_Dekker...

Im ex AWS and the internal tools _try_ to get away from the myth of human error and root cause. But its difficult when humans read and understand in a linear post hoc fashion.