In 2020, however, Pyongyang enacted a law to make watching or distributing South Korean entertainment punishable by death.
A defector previously told the BBC that he was forced to watch a 22-year-old man shot to death. He said the man was accused of listening to South Korean music and had shared films from the South with his friend.
I guess whoever made this footage and made it available to Western media may have risk their lives. Everything else than govrrnment propaganda is strictly prohibited in countries like North Korea.
Just one recent information:
North Korea Events of 2023 - Freedom of Expression and Information