Well, we do NOT know the exact cause of death. Yeah it has something to do with the cave, but it's information that can potentially save lives in the future

Don't get me wrong, especially now that someone has died trying to recover the bodies, there is a very good point to be made to leave the bodies there, like that guy who got stuck upside down hundreds of meters below the surface, and died. They left his body there, tossed concrete over it to ensure nobody goes that particular path ever again