“There’s a strong ancient history of Pontic Greeks all around the black sea coast.”
Does that look like an excavation made by military or defense forces? Because that was the story.
Greeks and Turks and a whole host of ancient peoples populated that area; so it would not be unusual to find some artifacts.
But that photo is NOT of a dig by military troops; that pottery would have been crushed and broken up in such a dig, because troops are digging defenses, not archaeological studies.
Not much is shown in the picture, but there appears to be a trench in the upper right. Trenches are typical of military defensive works.