Conway's Law is a physical law in the same sense as Murphy's Law.

It's also obviously true. The organization builds the architecture. The architecture either helps or hinders the organization. The organization builds a new architecture. There's no indirect connection here. If you've seen hierarchical organizations implement microservices, it's because that organization's complement was a microservices architecture. And likewise for a chaotic organization.

--well, sidetrack: Aren't strongly hierarchical organizations the best suited for microservices? With all the strongly divided responsibilities and whatnot?