Stops other people from doing the same stupid sh*t.
I wonder if they thought that in order to get him out, that his legs would break, so no go? But, he's dead. I would at least think that they could find a way to get his deceased body out for a decent burial, and then seal it off.
And so now, this has made me look up cave diving, and various forms of penetrative diving. As well as urban exploration aka draining aka urban spelunking, canyoning and mine exploration.