[willtim]

Template Haskell is meta-programming. It supports quasi-quotation, just like Lisp.

[lispm]

quasi-quotation is an unrelated feature in Lisp. It's there to build list structures from templates. Using templates in macros is sometimes helpful, sometimes not.

[willtim]

In Template Haskell quasi-quotation is how one would add new syntax, but it's not necessary either if all that is required is macro expansion.