Okay before you flame, hear me out.
I think that oranges are so much easier to get than a red, a red does not guarantee the perfect stat combination even though it gives the max on each stat. I would like to see the lure of grinding red a bit more than a cosmetic thing with small amount of QoL on the re-roll. A third stat? Double traited? Double traited would probably explode the game in overpoweredness in certain cases. But would be pretty cool and something worth the grind.
Edit: or even unique traits (or stats value) that are slightly bit more poweful.