You could ague that this is simpler than chains or belts driving cam shafts, and throw in variable valve timing with that. Same difference between a carb and electronic fuel injection. To me carbs are a mysterious analogue box of magic that somehow works - all be it barely well enough, electronic fuel injection seems…

Perhaps its operated more like a two stroke diesel, they use an exhaust valve and forced induction.

Not sure how thats different from any of the other single points of failure that’ll stop a car from running. No cars today have dual backup anything, just make it reliable in the first place.