Veridical NDEs could be evidence, if there was one that showed itself to be real, or even gave us good reason to think it was real and not phony. So far, there is no such thing. So far, each example has all kinds of problems, leading to the conclusion that it's not all it's cracked up to be.
Right, but I can at least expect them to bring back some kind of evidence. For instance, those veridical NDEs, they wouldn't have to bring back soil samples or other "physical evidence". They just have to prove, at least to a reasonable degree, that the experience is real. It could be providing information right when they wake up that they couldn't possibly know unless the experience was real. That's not asking for physical proof, but it's asking for evidence. And even that evidence is absent at this point.