I meant the journaling about what happens during the event. While player actions don't change the weekend's outcome, players have absolute freedom to describe how individual calls play out. There are no rules/mechanics, but there is absolute freedom about what you want to focus on and how it works out.
As I said before, this all comes down to opinions about games, and differences in preference about kinds of games. If you'd rather call it a story telling framework, I won't argue.
You're right that a different game, with more expansive rules, could really dive into how a call works out, relationships with other engineers and/or customers, and ultimately let the player determine how the weekend turns out. That could be an interesting game to play.
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Without a mechanic for a thing, there is not that thing in the game - from the playing viewpoint. Because your storytelling tool really lacks real game mechanics (to change the outcome based on players choices), it can't be defined as a game, which is a defined expert term and not an mistake-able opinion-like name. My Lady Master was calling her dog as "King" including behaving towards him like towards a king (interesting idea, right?). But it was a just a dog although sweetly snowhite, kind and even humble, not a king. Got it? By the way, thanks to my Lady Master I firstly saw the power of positive approach including positive reinforcement. So let me use such an advanced approach to you:
My mother was telling me fairy-tales including made up continuation according to my questions and wishes (!😊) for (various!😲) definive ends of them (⚰️ ). But it was still just an interactive narrating - shared storytelling, not a game. But later I finally conceived my mother to allow me to play characters in the fairy-tales including rolling classic 2d6+2 + stat (body, psyche, socialness) + skill (to not roll scarry "snake eyes" even if playing with some stat of 0 and trying something without a relevant skill, while even double lucky 7 can be rolled). The dice were borrowed from Czech board game named "Human don't be upset". Without knowing anything about RPGs or TTRPGs, I entered that world in my lucky 7 years of age. I got my first TTRPG (kind of near to DnD but made in "my" Czech Republic) in age of 15 to celebrate the end of my childhood (including getting an ID card and even motorbike riding licence, for which I had the tests already done). Then I started studying, GMing and later playing TTRPGS. I become also a psychologist including using TTRPGs as tools in psychotherapies. Then I even started making new TTRPGs, board games and physical RPGs including LARPs. So please consider me in this context as an expert writing truthful scientific statements and not as a crappy citizen chatting about not understood stuff. Thank you for your understanding.
Remember, the rating from me was high!😊 Because I rated it as a storytelling tool, not as a TTRPG (in which category it would be just 1 star for that little roleplay which is included in the rules which lacks other TTRPGs-related rules). So my approach was positive from the very beginning and still is such a prettyly positive. Feel free to respectfully rate all my games including what I published under DMDU in DriveThruRPG.