To the less military-brained folk here, the concept is to take land-based missile launcher trailer and plops them on the deck of the ships.

Holy shit this is one of the dumb things my unit was doing when I was in the Marines. We had these multiple rocket launcher trucks and from the conversations higher-level people had about them I basically got the idea that we had been given them before anyone know what to do with them, and half the Colonel's job was figuring out what we could use them for. One of the big brain ideas was to put them on the deck of an aircraft carrier or something and shoot them from there (another was to replace the driver with a remote control and turn it into a drone).

For the record we weren't working with the launcher they're talking about in the article.