We say that Abstracting an entity (the most vague word we've found, referring to people, places, things, events, and even other abstractions) causes you to lose details. That abstraction is contextualized to a stakeholder, since you have to have some criteria for deciding what details you keep and lose. An abstraction for a person would be different if it was for Facebook ("Name", "Age", "List of Friends") or for a doctor ("Name", "Age", "Sickness"). Abstraction is powerful because it lets us concretize real, vague things into something that a computer can understand and process ("Because computers are very stupid!").
I often discuss how an abstraction loses a lot of valuable data. One student was working with NFL games, representing them a set of properties like ("away team name", "home team name", "away team wins", "home team wins"). That representation ignores how many interceptions were made, the weather that day, the feelings that the crowd had, how much effort the players put into training - a lot of "humanist" data.
This article makes me wonder what goes through their minds. No one's complained about making these abstractions - they've never suggested we're ruining a game, a historical event, or whatever we're abstracting. But I think maybe we should encourage the students to think about what happens when you abstract something and what it means for the entity and not just the stakeholder.