>>23061347 (OP)
it's just typical 'cultural victory' propaganda
the defector realises the superiority of the homeland, eschewing Juche and being converted into a consumer right there on camera, purely based on the seemingly irresistible allure of one of the most glutamatic and recognisable artefacts of hegemonic American culture
>"even the enemy’s own people can’t resist our way of life, thus proving our system is superior!"
all of the defectors have CIA handlers (they're watched for the rest of their lives to make sure they're not Nork spies)
it's no accident
and it's not that they want the Norks to eat burgers, they're just using him to make sure YOU keep eating them