Comment by therealcamino

Complexity of the fab processes is isn't what the parent was talking about. They're talking about the major changes in the relationship between fabless semiconductor companies and commercial foundries.

The complexity of actual fabrication was always, and still is, entirely within the foundry. But in the early days of that model, designs could be more easily handed off at the logical level, leaving the physical design to back end companies, which makes designs much more portable between foundries. (The publisher analogy.) What's changed is that the complexity of physical design has exploded, and you can't make the handoff at nearly as high a level, and there is much more work that depends directly on the specific process you are targeting. Much more work at the physical level falls to the fabless semi companies. So it is much more work to retarget a design to a different foundry or process.