That silo-building is sort of the logical extreme. The happy medium is more like "because our services are loosely coupled, we're free to make code changes to

That silo-building is sort of the logical extreme. The happy medium is more like "because our services are loosely coupled, we're free to make code changes to our service and not worry about inadvertently breaking any other team's service as long as we keep our API stable." Which is a huge win over a monolithic system where everything is tightly coupled.