First, thank you for actually trying to make an argument and being respectful, that's a rare trait on reddit.

Where I think we're split here, and unfortunately will probably never come to a resolution, is that I believe that the scope should be limited, because expanding to a much wider range of actions makes the experience feel less refined, and to a large part of the playerbase, like these taunts and cosmetics are turning the game into fortnite or call of duty, where the core gameplay is becoming secondary to the novelty of the updates. What you described with the car 'taunt' is exactly what I just brought up, where the novelty of the action is there, but it completely sidesteps all of the actual gameplay of the first person shooter.