About the lakes you are probably right, both seas are quite far away from each other and it is more feasible Urartu to refer to a smaller region. Having looked

About the lakes you are probably right, both seas are quite far away from each other and it is more feasible Urartu to refer to a smaller region. Having looked at the words in the article, the link between both languages seems to be quite thin. Some of the words may make sense, especially if you take the root Ur. When it comes to Ar-Aram and other words the connection IMO weakens. But that's my point of view as a native speaker without formal studies in philology, take it with a grain of salt.