I now understand that BitCoin is actually an experiment to teach people basic economics and why many of today's rules and institutions (e.g., banks) exist. Sorry for criticizing it. BitCoin is an awesome educational tool.
Bitcoin is not money on the bank, but cash. If your wallet is stolen, the bank will not refund you, either. You can, however, go to the police and that is what the victim here is doing as well. There is, of course, a much lower chance of catching the thief than there would be with real cash.
WHY would you implement the digital version of cash, as it seems you just stated -- WHY would you create a digital currency with no ability to really track and disable and refund?