Dozy, talkin out your backside again, are ye?
Disagree - even top-drawer pilots mess up when taken out of their comfort zone.
You make an overly broad assertion, which is far more accurately stated as:
Some high performing pilots (call them set A) make errors when taken out of their comfort zone.
Others don't. Why? They adapt to unexpected changes in their environment better than the set A pilots do. Why? No short answer. If you could bottle it, you'd make your fortune many times over.
Have seen this through personal observation over and over again.