Actually, the evidence shows that the memories from NDE are at least as valid as real memories. If you have a problem with the evidence, then you can critique the methods employed by the authors. Thonnard's study indicates that the memories are being generated in a valid way from valid perceptions; in fact, they must be generated in this way because the lack of EEG definitively indicates the absence of consciousness and the only thing that we know of which can generate memories that are at least as real as valid memories is consciousness. There is no scientific evidence linking NDE with hallucinations; for example, the patient from the AWARE study results had a true perception of a sound during a flat EEG, so his experience cannot be dismissed as hallucinations. Furthermore, where is the evidence that the memories are being generated after the fact? Thonnard's results evidence the validity of NDE memories, whereas the God Helmet does nothing but entertain skeptics.

As mentioned earlier, OBE is only one element of NDE, but NDE requires a number of different complementary explanations.
Does this Helmet really duplicate ALL of the salient elements of NDE, including the phenomenological characteristics that identify it as a valid memory (see Thonnard's paper)?