Maybe some of the original creators of Ocean’s Archetype Editor are around and can explain the original thinking?
I don’t know of any either. This file has a long history at least from Ocean’s Archetype Editor, and has been adopted as a pragmatic measure to allow simple unit construction in modelling tools to continue, even if maintaining such a file at all by no means is ideal.
Name is also used on archetype preview in CKM, which caused me to believe that some UCUM units were wrong in the past. I’m not seeing any benefit of having an additional pseudo-UCUM syntax, as it will cause confusion in the long run