Interesting. It almost sounds as if this is saying: "Don't discount that a treasure might exist at a given-location. UNTIL evidence is forthcoming
to the contrary". Otherwise, one's preconceptions/beliefs [that a treasure doesn't exist], has colored and steered his view. Have I capsulized your view correctly ?
If so, here's the problem with this. It's putting the burden of proof on the skeptic to prove a treasure
ISN'T there. Rather than the proponent to prove there
IS a treasure there.
And the problem is: When a skeptic tries to show weak spots in the daisy-chain, The faithful grasp for ANY remote contingency. Eg.: Given enough slaves and enough years, etc... And in their mind's eyes, this therefore proves a treasure is 100% . Because the skeptic has failed to prove 100% to the negative.
But using this logic, I could say that 100 gold bars exists in yours or my backyard. And you must remain neutral (ie.: can't doubt). Unless proof were shown to the contrary. That's putting the burden of proof on the wrong end.