This doesn't match my observations. In many fields, training is limited and hides the details. We train workers to repeat specific tasks and they excel at them. But they don't have conceptual understanding. Any explanation of why things are done the way they are is surface-level. You can see it when a procedure fails for some reason. They way to deal with is to 1) do basic checks 2) try again and if it still fails 3) delegate to someone else. Nobody is going to troubleshoot or optimize tasks unless that's their main job.
It happens in construction, in the kitchens, on the assembly lines, and in the offices. It happens because it gets the job done.