Yeah, I guess me and the author just have different opinions on it. I do the same as you: start with an alias, use a function if its more complicated, and only

Yeah, I guess me and the author just have different opinions on it. I do the same as you: start with an alias, use a function if its more complicated, and only use scripts for things that are closer to programs in complexity/length. Using this model over the past ~10 years I have ~50/50 split of aliases/functions and only a few scripts.