Ok.
Well there appears to be 1 coordinator in that picture.
Why do you think there is 2? The coordinator is the yellow dot. Special software is loaded into the coordinator to coordinate, so if you didn’t do that, it didn’t just load itseld.
Most mains powered zigbee devices route, that is what you want to happen.
Most likely whatever disruption if there is one is due to not enough routers for the number of end devices that do not route.
You can study more about Zigbee Protocol in several posts in this list: