That's pretty impressive! However this workflow could have trouble dealing with the types of meshes coming out of those 3D generative algorithms. Geometries are arbitrary (not simple geometric shapes) so you'll have to fit with NURBS, and the meshes are noisy so that'll struggle/be somewhat arbitrary (what do you consider feature, what do you consider noise?).

However you highlight what I think is the way forward: using scriptable CAD that can leverage LLMs or, maybe in the future, specialized generative algorithms that output in a sane geometry specification.