Things like North Korean parents feeding their children mud, or Kim Jong-un personally executing an orchestra conductor in front of a crowd.
North Korea is not a complete black box. Americans are banned from the country, but most Europeans can visit on guided tours.
Millions of North Koreans work abroad in China. If anyone actually wanted to know what life was like in North Korea, you could just ask them. But no-one with the money to hire a translator and head to Beijing is really interested in the very boring truth; that North Korea is a poor, imperfect country where the vast majority of people live normal lives.
The documentary "Loyal Citizens of Pyeongyang in Seoul" has a few interviews with North Korean citizens who went to the South for better economic opportunities before having their passports seized and prevented from going home to the North.
It's changed in recent years - the BBC did an excellent documentary about what life has been like in DPRK recently by interviewing people inside, and it's become a lot worse now. People starving to death, no more trade with China, the lot.
At least about the guided tours, everyone I saw talking about their experience resumed to "you do as you're told and only go were they let you/guide you". There is no freedom to go around and see actual people in their daily lives.
you know that mud cookies are a real documented thing that people eat in places like haiti right? i dont know of this woman but saying "people eat mud" in a place known for having famines is extremely plausible