And what about the management team who set up a "system" that would break if one person forgot to do something?
When you have fallible components, like humans, then the systems that include them have to have redundancy (not firing them) and resilience; usually at least two people involved to ensure that the check-lists are followed correctly, maybe a third person to test and sign off the updates. If these things aren't in place it's because the "system" is deemed to be of low importance and not worth spending money on to get it right.
Putting the blame on a single person is just scape-goating of the worst kind.