Sometimes it is just a simple explanation. If the captain insists on throwing it in reverse despite warnings from the aft deck that you are closing on the dolphin, what more is there to say? Yea, if the pilot had smelled alcohol earlier, blah, blah. Every ship has an SMS and not a single one is worth anything if the Master chooses to ignore it. Are you asking why didn’t the company catch this before it happened? Of why wasn’t the joystick designed so that a drunk couldn’t screw it up?