> I really dislike the idea that programming languages have "commands"

I can see a perspective in which it makes sense to call imperative subroutines (in Python terms, functions that have side effects and follow the Python idiom for principally-effectful functions of returning None regardless of their inputs) "commands". But I probably wouldn't do it in a Python-focussed tutorial intended for new programmers, because it conflicts with what the language itself calls them and creates unnecessary friction.