Yeah, it's a shame the whole "one baby from white clay, one baby from black clay" thing is so dated and problematic. I obviously get why Stephanie Williams did what she did, but it feels like a lot of long-time Nubia fans were really upset by the change and it's a bummer that her powers have been pretty seriously downgraded.
There was probably also an unfortunate cascading effect from the Daddy Zeus retcon where they had to get rid of any derivative of the clay origin. I suppose they could have made her the demigoddess daughter of Philippus and a different god - she and Diana could have been raised as sisters that way plus it'd put their power levels closer together - but I also don't want to drag her down with the rest of the Wonders and give her a father so idek.
If the rumors of Nubia being in the 3rd movie are true I'll be verrrrry curious to know what angle they take with it.