With the critical, and failure prone, initial boost phase over China and Russia on a NK to Europe trajectory... they’ve got to love the idea of playing fallout catcher for a failed launch. How reliable are those TD2’s? Can they really loft RV weight that far? Falling short is, well, Moscow?
Aiming at Europe (with a single flight) requires a west-bound launch - which is not as efficient as a eastbound (US west coast) or south-southeast bound (Hawaii golf course) shot. So they’d need a even longer-range missile to hit a city to their west.
However - IF they can get a satellite in orbit, then the game changes.
“All” they need then is a small enough nuke weapon to get into orbit, and ANYBODY can get hit. And, of course, anybody’s neighbors will get hit if the trajectory or timing is just a few micro-seconds off. That has been the fear ever since Sputnik went overhead in the 50’s. Sputnik, however, was launched by relatively sane country - which the NorK and their Iranian weapons are hardly close to sane.