>reason: to avoid NAT issues with home servers

Home servers are not quite as easy as the article makes it sound. Home routers block incoming IPv6 packets, the same as they do for IPv4. To make a home server accessible, you need to explicitly allow that incoming IPv6 traffic in your router's firewall. This is analogous to adding a port forward rule in IPv4 NAT. The only benefit IPv6 has here is you can use the same port (e.g. SSH) for multiple home servers.