Don't NDEs happen when the person is unconscious? I don't think people can have an NDE if they stay conscious the whole time.
Well, nobody knows, since "NDEs" are anecdotes and not science. It's a very difficult thing to study scientifically, since it involves people's subjective qualia.
But sure, "NDE" may be a common term specifically for alleged experiences had by people at a time they were thought to be unconscious. However, partially because the "field" is much woo woo and little science, there's a lot of conflation. The person I replied to did mention something akin to "life passing before your eyes", and that certainly is reported by people who narrowly avoided certain death. It might also be reported by people who've had "NDE".
However, any definition or discussion of "NDE" -- when someone can have it, etc. -- is just idle chit-chat. It's not in any way a settled, or even verified as existing, matter. As yet, there exists no compelling reason to believe that one will experience anything after one happens to lose consciousness for the last time in one's life.