Yeah, 24 years old. It’s crazy how little has changed in 24 years, other than most of the major sites now supporting IPv6 (with some notable exceptions, such as AWS and GitHub).
That's because the problems he's describing come from v4 rather than v6, and v4 hasn't changed in a long time.
It's not like anything has changed, except the running out of IPv4 part.
Edit: or maybe they added 12 more extra configuration protocols to manage, in the name of "ease of use".