[nrabulinski]

(Haven’t worked with hazel and I couldn’t find much in the documentation so this may be wrong)

Because that case is non-exhaustive. It will match a list with 0, 1, or 2 elements, but the last arm matches a list with exactly 2 elements, not 2 or more, so as soon as you get to 3 or more elements, there’s no code to execute.