Has anyone who lived after being dead a few minutes... ever... got to see hell? NO! Does it mean hell doesn't exist?
Everyone who was technically dead for a few minutes, claims they saw heaven, a peaceful sensation, lightness, etc.
NOBODY talks about hell-like experiences.
It doesn't exist then.
If it works the way they say... STATISTICALLY someone who came back EVER would have been someone who was gonna go to hell.