I agree: the professor is obviously biased. This is most evident in how he tends to ignore the really compelling evidence which in the very least demonstrates a non-local conscious awareness/perception. Yes, we cannot know for
sure, for the most part, when the OBE or NDE occurred in terms of an exact time, but then again, psi experiments have demonstrated that precognition has empirical support which further allows one to theorize that perhaps we are non-local conscious "beings" during our NDE state(s), but that's highly speculative, and I admit that. However, and getting back on topic, if it's true that Pam "heard" the conversation regarding her small veins/arteries
after having had the earplugs inserted into her ears, then that's compelling evidence that she experienced auditory-like perception during a time in which she
shouldn't have; speech she most likely would not have heard via her ears, wherein several one hundred-decibel-per-second clicks were played--very loud and fast sounds (Tart 2009; pg 232). While it's not proof that consciousness can perceive, or even continue its existence, while the brain is clinically "dead," it at the very least provides evidence in support of a form of psi, in this case it being a form of telepathy (i.e., she psychically perceived their "speech" about her veins/arteries being small). So, unless one or more persons is/are lying about the events in this case, I believe her case provides good anecdotal evidence in support of human psi faculties, at the very least.