Semantic nitpicking. It's obvious that the grandparent speaks about templating, which can be done both on client and server side.
Honestly, I'm really tired of people who pretend there is no difference between serving up HTML and serving a program that constructs that HTML. The difference is that in the second case you cannot get the content without executing the program written by someone else with all the relevant implications.
Also, people often miss another important fact: server-side rendering can be cached and shared across clients. Client-side templates must to be executed by every client separately.