I haven't really done any serious 3D work in a few years but my impression was that there are already a few popular UV auto-unwrappers and techniques like Ptex that avoid UVs entirely. I was looking at the maps produced in the demos on your page and they're definitely not like anything I'd produce or want to paint by hand. I assume that's not the point, but rather to use tools like Substance Painter or Mari right?

I guess I'm just surprised that this niche is worth 7 figures. That's awesome.