If the only way someone can explain away the many, many cases of people seeing things their corporeal bodies could not see while having an OBE, is to say that they weren't there, so they don't know, I would say that occam's razor is definitely not on their side.

The person who had the story about the wing nut said that nobody there knew there was a broken wing nut until after the OBE experience, when that person told the other people about it. Trying to say the person heard something being talked about by others when that person has reported that nobody else knew about the broken wing nut is making things unnecessarily complicated.

And since no scientific explanation has been forthcoming, I think we can say that there is no non-metaphysical explanation for the cases when people see and report things they could not have seen with their corporeal bodies.