Is the movie Flatliners worth watching? Your review is anything but enthusiastic. Should I waste my time?
Moving on to a more recent flick, Oppenheimer, raises the question of what happens when your death is in an atomic inferno. Thousands of Japanese civillians who had an expectation of going to paradise at the end of a long life instead had their brains vapourised in a thousandth of a second. There is no possibility of a NDE in a death like this. If the induction proceedure, with the dreams of the white lights and all that presentation pizzazz is necessary before one can be accepted into heaven, then it means that anyone who has an instant death such as in an atom bomb blast, is going to miss out on their chance to go to heaven. That does not sound fair. There would have to be a fast track route into the afterlife in these cases. And if that works in certain cases, why not in every case. And then a NDE serves no purpose, except as an interesting topic for discussion.
I would not bother to watch Flatliners. I watched the movie because I found the premise intriguing, but once I saw it, I got the feeling that the moviemakers couldn't figure out how to convey their idea, so they fell back on a simplistic "good people go to a good place, and bad people go to a bad place" formula. The movie became boring, instead of delivering on the exciting story that was promised.
You raise an interesting question about what happens to people who are instantly vaporized. First, remember that a near death experience is just that-- it is the experience of someone who came close to death, and came back to tell about it. Your question presumes, as I think many people (including me) do, that someone who actually does die goes through experiences similar to someone who experienced an NDE, only they don't come back. Basically, you're asking what is a near death experience? Does someone still have to have a corporeal body and brain to be able to experience it-- that is, are NDEs still a biological function? If so, people who are instantly vaporized would be deprived of the "wonderful" experience of transitioning-- into the afterlife for those who believe in it, or into nothingness, as the doubters would have it.
I myself have wondered if it makes a difference if a person is vaporized instantly, or dies suddenly in an accident or due to a murder, etc. I suspect Tantric-Master might have more knowledge or insight on the subject than I do. But I would hazard to guess that people who believe that our consciousness, or soul, transcends death and continues on, would say that the experience of going into a place of light and love, of meeting dead relatives and beings of light, and so on, is not in any way dependent on the corporeal body. Though I suppose that people with certain beliefs, such as Tibetan monks, think that it is good for a soul to have a "proper" transition into the afterlife. I would wonder if they might be concerned that someone who dies instantly would not have that experience.
And as Rareboy said, there are some people who have come near to death, who have no recollection of having an NDE. Why do some people have it, and others don't?