So, he's likely lying based on the fact that you "have to believe" that Amazon uses some undisclosed super-elite ninja tech, rather than yet another hokey algo

So, he's likely lying based on the fact that you "have to believe" that Amazon uses some undisclosed super-elite ninja tech, rather than yet another hokey algo based on IP address and other hopelessly unreliable data? That is not an argument. It's a pointless assertion that you believe in Amazon being correct, in the absence of any actual evidence.