When my boyfriend heard about it the first thing he though of was this:
It looks like N. Korea was aiming into the Sea of Japan whereas 370 disappeared, as others have said, over either the Gulf of Thailand or the South China Sea. So it wasn’t quite the “Ahah!” moment we were looking for, but it’s still interesting that nobody’s pointed this out yet, especially since these events happened three days apart. So we figured we’d put our observations on the internet for posterity and possible debate.