Daz is a bit of a milker when it comes to 3D printing. Each asset needs its license. 12 girls, 12 bikinis, 12 hairstyles. The cheapest license, when not in sale, is $1.99, so we are talking about $72 in licenses to 3D print that image (up to 20 times). Then you should add the printing cost, which I do not know, and even the printer if someone wants to do it commercially and (as it's my case) doesn't own one.
The best idea to get a good result would be to print it in a neutral color and handpaint it, and that would add even more cost and, especially, time. And someone who knows how to paint. It's been years since I painted a Warhammer figurine, and my skill couldn't be considered pro-level even then.
The figures should be adapted to 3D printing (even more time) to avoid the problems you named with hair and fishnet.
So, yes, that would be a nice feature to have, but I never would try to do it commercially. The final cost of each printed item would be too high to have any success, would take a lot of time I would need to take from development, and no one can be sure the final product would have the quality needed to be commercialized.
I guess that's why no one is doing it in the AVNverse. The more "fancy" items I've seen out there for AVNs have been T-shirts and mugs, and I think it wasn't a success. Most people who would purchase them have the PS skills to extract their favorite image from the game and print a mug online.