It is pretty clear that the Kim regime is using the Winter Olympics to set a precedent for other countries to point to in order violate United Nations sanctions:
Both Kim Yo-jung and Choe Hwi are sanctioned by the United States for human rights abuses. Kim because she is “part of the agency in North Korea who’s responsible for propaganda, for censorship, controlling information so that the people of the country do not know about the rest of the world,” says the Treasury Department. Choe is subject to United Nations sanctions, as well, which actually bar him from leaving his country.
Choe is “First Vice Director of the Workers’ Party of Korea Propaganda and Agitation Department, which controls all Democratic People’s Republic of Korea media and is used by the government to control the public,” the United Nations says. The South Korean government is reportedly trying to get an exemption to the travel ban for the Olympics from the UN Security Council. [Weekly Standard]
You can read more at the link.