That's...that's terrible. That it would feel worse to have a chance of resurrection than to have closure. It sounds depressingly plausible that that's people's true rejection, but I hope it's not.

In my experience, people holding on to very, very small probabilites can be unhealthy. Misplaced hope can be harmful.

Religion doesn't have the same problem, and in my experience it's because of the certainty. People believe themselves to be absolutely certain in their belief in the afterlife. So there's no closure problem, because they simply know that they'll see the person again.

I don't think it is quite this cut and dry. Religious people will assert they are certain, but I think there is a significant level of doubt there. People do use heaven as a way to cope with the loss of a loved one -- it is perfectly understandable, but I think it ultimately often prevents them from grieving and acheiving healthy and proper closure.