Yeah it is a bit of a strawman, especially as Exhibit B solves this problem (and an inline function would remove the duplication). However as the mention at the

Yeah it is a bit of a strawman, especially as Exhibit B solves this problem (and an inline function would remove the duplication). However as the mention at the end this isn't a serious performance tuning session, or even a serious answer to FizzBuzz, but a way to introduce some Haskell concepts.