have you not read the Reddit AMA? The guy was using one account for himself and customers money. He also let nobody else have access to the back end meaning if he fell under a bus, goodbye funds and btc. He also deployed and tested updates on the live system. Plus when he did the historical 424k transfer HE VNC'D INTO A LINUX MACHINE TO DO IT. Meaning he was keeping nearly 500k btc in one hot wallet and using a graphical interface to access it and you saying he couldn't of lost/misplaced/spent/had hacked the rest of the coins, say whaaaa?!