I did read the article. I am just musing on the impossibility of knowing with a reasonable certainty that a dog, or a person, won’t snap again.
If the dog snaps at a muscular 6’2” trained and ready man, it will probably be ok. But most of us aren’t in his condition or state of readiness.
Knowing a dog can be dangerous is the key to not getting seriously injured by one. Nearly all the maulings we read about are accompanied by claims from the owner that the dog “never did anything like this before” and was always “sweet and gentle”, etc. Translation: they were sure the dog wasn’t dangerous.