Trellis isn't and has never been state of the art. It's not a good choice for comparison; there has been progress on a lot of these problems. There are models that can do clean topo and PBR textures, for example.
Unfortunately they are all proprietary, but 3D models are sort of a side area in AI research, so most of the effort is from small startups.
We've tried them all. If one existed, it would save us money, speed up our pipeline, and trust me we'd be using it.