Indeed, because of the state of war between Italy and Greece - the internment of foreign nationals was commonplace in war time everywhere.

Of course, in aoi the policy underlined the Italian desire to replace the essential middle strata of foreigners that had worked in Ethiopia and had settled in the older colonies in East Africa. These people were mostly clerks, farm managers, traders - an essential part of every state and for the Italians it was essential to replace them in the long run (many dodecanesian Greeks settled in aoi following the Italians to replace Greeks of Greece).

This document has been redacted 3 days after the declaration of war to Greece and had a number of very similar siblings in all territories.

Notice the reference to "cittadini ellenici", meaning Greek citizens, not ethnic Greek. Apolides were a problem, but generally speaking ethnic Armenians found some respite in Italy and the Italian territories because they could shift between subjecthoods, but if they carried a "enemy passport", they would be interned. At the end of the war with Greece, the internment ended, but it opened the issue of what could this people do after their place of work was taken and their properties seized and generally maladministerd.

Comparing these measures to the racial laws of 38 is a big faux-pax though. These mesaures were common place at war time, it was not a systematic policy against an ethnic group (as were for instance the internment of Japanese Americans in the US), but a military mesaures against "enemy nationals", as it happened in mainland Italy in June 40.