You can't reduce your surface area to zero. So survival free-falling into water is very unlikely, even if you land perfectly. Uninjured is definitely impossib

You can't reduce your surface area to zero. So survival free-falling into water is very unlikely, even if you land perfectly. Uninjured is definitely impossible. It sounds like his pilot chute and un-deployed main chute slowed him down just enough, and he landed well enough, that his body was able to take it. Lack of spleen helps too.