This is true in some cases, but not when mitigations aren't practiced properly - it's not the fat fingered user who should be fired or retrained, but the designer or maintainer of the system that allowed it to become a serious issue.
Look at the recent GitLab incident - one guy messed up and nuked a server. Okay, that happens sometimes, go to backups. Uh oh, all the backups are broken. Minor momentary problem just turned into a major multi-day one.
That's a problem and one which could be preventable with training (or, arguably, firing and hiring). Maintaining your backups properly should be someone's duty, designing and testing systems to minimize impact of user error should be too.
Look at the recent GitLab incident - one guy messed up and nuked a server. Okay, that happens sometimes, go to backups. Uh oh, all the backups are broken. Minor momentary problem just turned into a major multi-day one.
That's a problem and one which could be preventable with training (or, arguably, firing and hiring). Maintaining your backups properly should be someone's duty, designing and testing systems to minimize impact of user error should be too.