However, her vindication was not before family services made a visit to her home and the whole weight of social media's planet troll descended on the family.
Now the attention needs to turn to the design of the zoo, where it should have been to begin with.
Unless the parent hoisted the child over a fence or pushed him under, it's hard to see how anything but the design of the enclosure is at fault over an incident that ended with the gorilla being shot dead by staff.
And in that there was no choice - between an animal and a child, the child must always come first. Zoo staff acted quickly and correctly, and the gorilla, despite its name and home, was wild and unpredictable.
The zoo in that respect is to be applauded, but it could be the zoo that ends up paying.
It is due to reopen today, and has made changes to the surrounds. That's the least it has to do to prove it didn't endanger the life of a child, inadvertently leading to the death of one of its most precious residents.