Yes.The distinction I (and I think @pawsplay , but I don't want to put words in their mouth) have been trying to make is between functional and superfluous detail. The Riddle of Steel is a game about driven people staking it all on vicious sword fights, and it has detailed and bloody rules for fighting with swords. Those crunchy fighting rules might be good or bad, but they're not there out of some obsession with completeness. OK, the game probably didn't need you to enter your character's height and weight, but that's the kind of colour that was de rigour at the time.
I think my point may have been misconstrued. What I'm saying is that the "Chekhov's gun mechanics" idea, that is set out in the blog post, is not a uniform feature of, or aspiration for, all RPGs.
There are RPGs - AD&D, Rolemaster, even (as you note) height and weight in TRoS - that don't conform to it. And it's not because those RPGs are poorly designed by some universal standard of RPG design. It's because they are using a different standard of what is de rigueur. They have a "completeness" aspiration that is not just about the utility of that rules element for framing and resolution of action in play.