You have to sympathize with Sony. Rebuilding the PlayStation Network ground up with a gun to the head was never in the cards. And like any company suffering a sudden, mammoth, shocking customer data breach, it couldn't have imagined events playing out quite like this.
That's what caused this mess in the first place, of course. Sony really didn't think something like this was possible, so when it happened, it did the only thing it could: take the network completely offline. And then it had to be careful what was said publicly, probably to avoid (for as long as possible) spooking "persons of interest" almost surely under investigation.