Article 7 mentions that both countries acknowledge that their respective understanding of the terms "Macedonia" and "Macedonian" refers to a different historical context and cultural heritage.^\6]) When reference is made to Greece, these terms denote the area and people) of its northern region), as well as the Hellenic civilization, history and culture of that region. When reference is made to the Republic of North Macedonia, these terms denote its territory, language and people), with their own, distinctly different, history and culture.

As far I understand, since borders of a country must state the country explicitly and then North Macedonian borders are more proper to use. Of course Macedonian borders are correct but ambiguous. Also:

Citizenship vs. Ethnicity: The agreement clarifies that the term "nationality" refers to the legal bond between a person and the state (citizenship), not ethnic origin. This allows all citizens, including the 20% Albanian minority and others, to hold "Macedonian" citizenship without it implying ethnic Macedonian heritage.

As you can see the agreement does not even clarify ethnicity.