When a one in 7 billion "thing" occurs we tend to test it against the 6.9999999 billion other times when the thing did not occur.
Then we likely call it a conpiracy or tin foil hat notion for its oddity.
For example almost all the alien abduction reports are due to a failure to consciously wake up in the normal manner. This should not detract from the possibility of an exceedingly rare event of a close encounter. Only the availability of evidence/proof should be imposed.
As of now the only proof is that of a hypnogogic abnormality or sleep paralysis phenomena creating the alien abcuction experience.
Travis Walton's experience seems to fall outside even these parameters yet proof is still lacking for an extraordinary explanation.