The North Korean propaganda machine is very powerful. When I was stationed in the ROK in 96-97 we used to find leaflets scattered around(dropped by balloons) proclaiming how great it was in the north (lies).
since their media is state run, any video footage you saw was what they allowed to be published. I'm sure a lot of north Koreans were relieved when he passed, but of course his successor is probably just as bad.
Much of what we hear about life north of the DMZ is fairly accurate BTW.