This isn't a problem inherent to centralized "Web2" services, it's entirely possible to share custody of a domain name so no one person is a single point of failure if they drop dead or go to prison for getting too friendly with North Korea. You'd hope that a proponent of smart contracts would be familiar with planning for contingencies like that, since with those there's nobody to appeal to if something goes wrong later, but Griffith didn't think that far ahead.