Interesting. It indicates a much bigger change of direction than one might otherwise suppose. The game’s economics have been pretty much redesigned, from the ground up.
And, whilst your chart shows magnetised ferrite as being exchanged for Radnox, it was also exchanged for Detritium. If you follow the Exocraft Technician’s quest, he sends you after magnetised ferrite - but at one point in the dialogue, the programmers have obviously slipped up, and it’s sending you to get Detritium.
I think there have been far more changes than we can track. It’s not linear.