I actually find tlsmikey's logic quite straightforward if you compare his example with real, million dollar flight sims used for training real pilots, where every dial, button, lever and instrument is where it is in the real plane and works the same way.
From that perspective, the (currently) missing presets takes us away from the "how-we-operate-the-car" physical realism, even if our tech allows more fine-grained adjustments to be made compared to other titles (that are perhaps more true to life in the "how-we-operate-the-car" physical realism).
Your proposed solution (being able to configure dials and/or buttons and mappings) then becomes the missing link for the physical "how-we-operate-the-car" realism that
@tlsmikey is referring to?
FWIW, I'm beginning to think that "sim-ness" need not be confined to technical, "under the hood" simulation value alone, but perhaps also how accurately (as in "how-we-operate-the-car") that tech and simulation value is presented to the user compared with the real deal (e.g. ICM vs. physical dial mapping) in the sense of "Can I train my motor reflexes using pC2, such that I instinctively reach for the correct dial and adjust it like I would if I were sat in the real car in a racing situation?".
I haven't really given that much thought before now, but I can see why this could be rather important to a specific segment of the market pC2 caters to. It is my impression that this is also why said certain segment will complain *vehemently* if a track isn't *exactly* like the real thing -- it messes with the reference points you instinctively use when on track, possibly leading you to build up bad habits.
Am I making sense?