I am trying to use Palladian ReverseLocationLookup to retrieve all the addresses of one location name. It does not seem the Palladian node provides the kind of query capability of specifying a location name. It just returns all the locations within a certain radius. It is not only increase unnecessary network traffic, but also takes work to filter unused information out.
Yes, that's the way the node is currently implemented.
For larger lookup volumes and to greatly speed up things, we offer a “local gazetteer” plugin which allows to deploy the location database locally. Contact me for details if that's of any interest.