Currently (2020-08-05) if no data about particular node is found locally (in federate_ jobs), we are trying to connect remotely to that node's status reporter. Since all data about a status of cluster nodes should be available locally on each manager_node, it is no longer necessary.
Probably monitoring credentials might be removed from management nodes (i.e. https://github.com/cloudify-cosmo/cloudify-manager/blob/50f42a5cb3673d2d2ab45f5a1caf4826bf274a2e/rest-service/manager_rest/storage/management_models.py#L634 for Manager and similar for RabbitMQBroker and DBNodes). Those fields should of course not longer be populated in create_tables_and_add_defaults.py script.