Because the country’s prime minister, Mette Frederiksen, “would have no interest in discussing the purchase of Greenland,” they would meet “another time.”

Let me see if I understand this correctly. Since he postponed the whole meeting, it seems that he had no other reason to visit Denmark at this time, but before scheduling the trip in the first place, he never bothered to find out if Denmark had any interest in discussing Greenland.

Makes sense.