A "documentary" for the gullible, ignorant, pliable, lackwits, superstitious, uneducated, religious. And having said that: the desperate. Something the makers of this kind of wannabe-conversant-beyond-actual-factbased-knowledge (read: gobbledygook) always rely on is the malleable mindset of a mourning person that is rather content with any answer than is left without one.
The only thing these claimed cases have in common is that in none of them the most rational explanation is even considered, spite being the most honest: we don't know what happened. Instead there's a contrived need to claim there's got to be more to it than meets the eye. And that's where the parasites jump on the disconsolate, pushing their own agenda as some twisted alternative truth, intended only to benefit the makers of this garbage - never the relatives reaching for anything that could externalize the reason to why their friend, sibling, spouse or parent never was found, instead of facing the harsh reality that sometimes it's but a sum of bad coincidences and unfortunate individuals are exposed to these conditions.
Shame on the team producing such false hope giving trite. And shame on the ones commenting somebody not convinced by the worse than poor, obviously fabricated or even non-existent "proof" presented within is somehow too skeptical a person. An open mind doesn't require your brain drops out, which here is the case.