If the output was wrong and he blindly trusted it, then none of the people reviewing it noticed anything, then they should all have been fired.
Sounds more like he had it generate the text, he checked that it was correct, then other people checked it and also couldn’t find any issues with it.
Autocorrect also ducks up sometimes, that doesn’t mean you should be fired for using it, unless you’re too dumb or lazy to proofread it yourself and correct mistakes.
A billion of those and you’re still not even close to paying off that fine