I think it just needs a step back and new approach to that, with something like the seeding info yeah. I think working off of a 3d model though would solve it.

3d generation of 3d models, with an adjustable default base mesh, then rendered pictures from that, that's what will fix the fingers. The issue with the hard coded seed is that you don't always see 5

3d generation has just started, it's as primitive as dall-e mini was when everything went wild. So give it another 2 years.