If this person simultaneously fucks up millions of kitchens around the world, you do not blame that person. You blame the checklist which encouraged giving a single person global interlocked control over millions of kitchens, without any compartmentalization.
> If this person simultaneously fucks up millions of kitchens around the world, you do not blame that person.
No, you definitely do, even more than before. Let's say for example that the requirement is to disinfect anything that touches food. And the bleach supplier fucks it all up. You blame the bleach supplier. You don't throw out the disinfectant requirement.