You are misinformed. It is true, that for consumers the disk is dead when the head crashes onto the surface. But there are companies who specialize in data recovery and they can still read all the undamaged parts. You can even see in your picture that there is only a small band on one disk affected by the crash. The other parts can still be read. Even the broken piece can be read, except the corners. It will by no means be cheap or fast, but if the data is worth more than the recovery it can be done.