The difference between Washing and Upcycling is enormous. That does fit my observations, it's nice to see it quantified.

Another aspect that is nice to see quantified is how big the effect of better quality modules is. You likely underestimate that initially since it's not linear.

The Space Casino mentioned in the post is not possible anymore in Factorio 2.1. Which is experimental at the moment, but I'd assume will be released soon. And experimental Factorio tends to be as stable or more as the stable versions of other games.