Because that's not what happened. It was merely the coast guardsman's interpretation of what was said.
There was a guy on fox yesterday morning who went into great detail about that particular ship and dive boats in general and the only hatch door to down below is not locked......
Given the small size of the hatch door and the difficulty of a large adult to enter thru it, there is no way anybody could have been rescued......let alone make a hasty exit to safety.
Also, the captain may have said ‘blocked’ which the Coastie interpreted as ‘locked’.