Wondering ...
I don't want to defend the North Koreans, but I wonder whether a rocket that flies / glides towards its target can be called a ballistic missile? The dictionary definition of a ballistic missile seems to be:
"a missile with a high, arching trajectory, which is initially powered and guided but falls under gravity on to its target."
The statement from South Korea's Ministry of Foreign Affairs, that "the North is also banned from making any launch using ballistic missile technology" sounds very much like an attempt to associate a squared peg with a round hole. We always consider the West as the straight negotiators, dealing with duplicitous North Koreans. But sometimes I feel that the Western powers are quite liberal in interpreting the rules. Not an approach that will endear you to the other side when it comes to the next set of negotiations.