Not as bad as those examples you just saw, but as others already said, those are mainly illustrative. Beyond that, it's a matter of template engines and most frameworks allow you to choose one.

Generally you won't see PHP/JSP levels of code, but the more popular engines do allow quite a bit of logic, i.e. don't adhere to StringTemplate-level purity[1].

[1]: http://www.cs.usfca.edu/~parrt/papers/mvc.templates.pdf