Ah, so quite a few inconsistencies and loose ends got tied together in that article. Many thanks, ORAC.
There are several left, however. It has been suggested in the J press for example that as the Kokuka Courageous was Panama flagged, the attackers probably did not know of the Japanese connection. Some Philippino crew members are still insisting on seeing some kind of missile, projectile, or incoming round following the first limpet explosion.
(One one level you could say that these were hijacks, Iranian style, for the crews.)