This is a small boat by cruise ship standards. I have been on it many times and those rails are still high enough that you cannot just fall over. He must have been leaning way over to have fallen over at all. That or climbed up on the rail. I have not heard any witness say that as yet.
“Twenty years from now you will be more disappointed by the things that you didn’t do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.“