
No. For decades academics have been writing on the rationality of the Kim family (and autocratic survival more generally), but journalists find it easier to sell a story when you can pitch North Korea as a land of crazies. David Kang's earlier academic piece in International Security, his interview on NPR yesterday, and an article from Anna Fifield in the Washington Post all reiterate this point.
If the goal is regime survival, than North Korean actions are indeed rational and successful. Nuclear weapons, strict control of information, and curtailment of freedoms, corruption, deification of regime...all these things are intended to keep the Kim family in power. North Korea does not play by international rules, it regularly violates norms, and many of its actions are inviolable if not despicable (this is probably true to some degree of all governments). North Korea is certainly and may appear to play by its own rules and logic. But that doesn't make it irrational.
