Well you know cruise ship radio operators wouldn't be able to decipher it. These dorks allude to it as though they were calling in the clear stuff like, "how far are we from Pearl Harbor now? Oh boy are we going to kick some round eye ass!"

They were under radio silence using shuttered lights to communicate! Conspiracy junk is always that "gimme an inch and I'll take a mile" attitude with a spec of distorted truth bolstered by bullshiit!