dont think you can have a game without stats, here is a base explanation.
but admittedly, the wearable system still sounds really odd and i fear that you are right in the sense of no flat stats. my biggest problem with not having stats is that there is nothing to stop a player from going from tier 1 to tier 10 (example) in a rush, because there is no equipment limitations.
https://forum.oortonline.com/t/art-race-and-wearable-variations/2674
topru there is the discussion on wearable, we dont know about personal progression yet but this kinda shows gear progression