I read the post. The language is just confusing. You shouldn't have to tell me that "You should write your next web server in Go" doesn't mean what it says on the tin.
A web server is Apache, Nginx, Lighttpd, etc. What you just described is a Web Application, which I develop all the time on python -> uwsgi -> nginx stack.
For the record, I'm not blaming you, but the author for the confusing language. The title says "Web Development in Go" -- web dev is traditionally web applications/html/css etc, not typically including servers. Then their opening sentence is "You should write your next web SERVER in Go"
/pedant