They didn't hurt anybody, they didn't kill anybody, and they quite easily could have made an 'example' of someone to scare the rest. Admittedly, it's a bit rough to involve an 8-year-old, but everybody has their price, and 53 million is my price for doing that.
Good Luck to them.
Sorry if that offends anyone, but I have a lot of respect for anyone with their sheer balls and ingenuity. I wish I'd thought of it.