You are over-egging NK from my experience.
Friendliness is hard to judge as most people can only speak Korean and almost exclusively pretend like you don't exist. Whether that is through fear or not, I can't say but it is unusual when you consider that NK is the most homogenised society in the world and that the number of western tourist is only ~2000/year that most people did not seem curious at all to see us.
Cooking skills may not be lacking but raw ingredients certainly are. I never realised how much I depend on fruit until I visited NK. I don't particularly like apples but after almost a week of no fruit and almost the same meal everyday (kim shi), I was genuinely excited when I managed to get half an apple. I can only imagine what it is like for ordinary NK citizens.
For all its affront and posturing, you cannot visit NK without recognising that it is a poor country masquerading as a rich one. The paucity of cars even in the city centre of Pyongyang was eerie - especially so when we drove on an empty 10-lane motorway. There seemed to be only about 5 styles of clothing available (especially for men) that reminded me of school uniform every where we went. The complete lack of crime (except against humanity, perhaps) was almost disconcerting.