> CDNs are about content distribution, not load balancing.
For you, maybe, but many people use a CDN and related services as a form of protection from web server overload.
> We are doomed to use 443 for eternity.
Do you write your applications for Win32? There have been many such proclamations made in the past, and they have all, slowly but surely, mostly gone away. Just try to browse the web using a really old browser or operating system. You can’t do anything, since most web sites require TLS1.0 or later.
> We could just change the DNS spec to stop the apex madness.
For you, maybe, but many people use a CDN and related services as a form of protection from web server overload.
> We are doomed to use 443 for eternity.
Do you write your applications for Win32? There have been many such proclamations made in the past, and they have all, slowly but surely, mostly gone away. Just try to browse the web using a really old browser or operating system. You can’t do anything, since most web sites require TLS1.0 or later.
> We could just change the DNS spec to stop the apex madness.
We did. This is the RFC which did it.