مورد ... قرار دادن is a compound verb which may have different meanings according to the verb you put in the space between. Its general meaning is like to be referring by an act. Like when you say: مورد خطاب قرار دادن it means like you are talking to someone and referring to him or her. Another example is like مورد تشویق قرار دادن that means to clap or applaud for someone. In one word, you may say this is part of a compound verb that its exact meaning strongly depends on the empty space part (...) and it is referring the object of the sentence by an act that is expressed in the verb you put in the empty part.
Good question, well-done. Keep up the good work!