I would personally refer to those as "Special / Apricorn ball females (fresh caught)" rather than "Spitbacks", but the terms aren't exactly set in stone.
And they can indeed be useful, I still have the ones we exchanged, which I'm planning to breed egg moves, IVs and natures onto. They're just a larger project than breeding from some of the other "spitbacks" I've seen around would be.
Thank you.