I think the author is approaching this the wrong way, it's trivial to show the advantages listed are mostly not true. The marginal benefits are more than negate

I think the author is approaching this the wrong way, it's trivial to show the advantages listed are mostly not true. The marginal benefits are more than negated by the risks and costs of IPv6. IPv6 is not the product that needs to be sold, and deploying it usually has negative cost benefit on short term, for most businesses. IPv6 needs to be deployed today because the internet literally cannot move forward without it. There are tens of millions of new internet users in Africa and Asia who get an inferior and more costly service for the simple reason their countries weren't around for the great IPv4 feast in the 90s. The data-centers of the world waste enormous energy and hardware for routing the more and more fragmented IPv4 space. The costs of all this, as well as renting IPv4 addresses, which have steadily rised, are passed down to the consumers. IPv6 should be sold as a status simbol: we deploy it because we care, we are altruist industry leaders not stingy bean-counters.