The next idea someone will have will be the ability to angle the 'kite'. This enables you to direct thrust when the wind isn't blowing the perfect direction. This might require something new and rigid, like a 'mast'.
So will these "kite boats" have engines as well, with kites being used to reduce the time for it cross the alantic and thus carbon emmissions.
Or is the aim that the kite boats won't need engines.
Fore and aft rigged ships sail into the wind pretty well, but square rigged ships were better outfitted for running with the trades. This design would probably do something similar, but yeah, next they'll invent masts and yardarms and booms, and then we'll be back to squabbling over trade routes in the Caribbean.
What an amazing invention. Wait until someone invents a wooden stick with a flattened end that you push through the water and propels vessels forward using only manual labor.