I owe the forum an appology: When I read the article initially, I did it on a mobile device and did not see the "tool" in question. I assumed, from the verbal description of it, that it was a spork.
Now that I see what the tool actually was, I agree that the issue is not quite so cut and dry for the six-year old. That said, the punishment still seems draconian to me.
Continue as you were.