

It’s right there in the blurb, you don’t even need to read the article:
““We have no chance against this,” Mibe said upon a visit to a Shanghai parts factory, commenting on its seamless automation across all levels of production. Logistics, procurement and all aspects of the process were so automated, in fact, that he did not spot a single human worker on the supplier’s floor.”
No, I don’t think they have no employees. But your five times the employees thing is misleading. BYD Corporation has 5 times the employees as Ford, but that is for the entire BYD corporation, including their batteries, cell phones, fork lifts, solar panels, semiconductors, and rail transit systems. BYD Automotive is closer to 2 times the size of Ford. BYD is also vertically integrated, meaning they build a lot of the parts/components that go into their cars. Ford outsources a lot of parts and components.
The actual reason is because the church was protecting its assets from the priests. Back then, priests were very powerful members of local government and controlled a large percentage of the wealth in an area. If they could get married and had kids, their kids would inherit the wealth they accumulated instead of that wealth going to the church.