The better explanation is that the brain is not the origin of consciousness but a conduit for it, just as a TV is not the source of the images and sound on display but a conduit for them. Kill the body and consciousness survives, just as smashing a TV does not eliminate the programming it displayed.
Notably, there are many examples of carefully controlled and well documented hypnotic past life regressions that support the view of consciousness as surviving death. Similarly, there are evidential mediums whose abilities at accessing the dead in spirit form are so well proven as to exclude fraud.
As for frightful NDEs, they seem to be a warning to change course in life, both for the person affected and for those who hear of the experience.
[[” Why would evolution develop such a mechanism? What benefit is it unless there]]
Not that I beleive in evolution, but if we are arguing this, then it wou,d be the same benefit that animals have when they get predated upon and go into shock and are eaten alive and don’t struggle or apparently feel the pain. The body and brain especially fights furiously to protect itself through various mechanisms.
[[As for frightful NDEs, they seem to be a warning to change course in life]]
I was and am still on the right course- it was more the evil one trying to dissuade me from staying on the right path- thak,fully he didn’t succeed. (Although I later swerved severely all on my own, like a dummy)
As for the mediums, again, lying spirits- sure they get in touch with something, but not th3 dead- these spirits keep them blind- and just for the record, mediums are only Correct about 60 some odd percent of the time, not much better than random guesswork, although they are more skilled at “reading situations” and guessing facts because they train themselves to do so.