well but it is very difficult to guard against all exceptional situation requiring some basic aviation skills. i think the point made is that you can fix leaks one by one, which takes a very long time, or you can know the abstraction layer below.

fixing one leak and assuming there isn’t any other is not the right strategy, is my point.

It does looks systemic. Modern planes being design to fly by themselves and new pilots being trained as button pushers with no intuition over the machine they are supposed to control in an emergency. Not that automation is bad but the brain-machine interface is degraded at this point.