The estimate isn’t right, but the direction is right— there just aren’t that many discrete components on these boards. The chips themselves contain capabilities that an embedded designer would otherwise need to design. I’m not sure there’s much further to go, since much of what isn’t on the chipset is power related.
I agree. The estimate I was contesting. Also, we somewhat were talking past each other because I see these boards as an ensemble, HW+SW. So I was thinking about the time to make both. I agree that the boards have few discrete components and the PCB's are relatively simple.