I was going to start out this comment by saying "I don't mean to dump on well-intentioned entrepreneurs", but in all honesty I think I might. That is, at this point, anything that doesn't have at least a possible path to scaling up is just a simple sideshow, ignoring the massive changes that need to happen to get to a zero-carbon future. So this "use a little sailboat to ferry some expensive wine, coffee and chocolate across the ocean" may get good press (hence, the article) but it's not really a path to make any dent in our carbon dependency. I would contrast this with, for example, attempts to make "wind-assisted" cargo ships, e.g. https://www.offshore-energy.biz/worlds-1st-cargo-ship-equipp.... I'm not an engineer so I don't know if this approach will be scalable long term, but it's at least going in with an attempt to scale.
I just feel at this point that virtue signaling luxury products (affordable to a tiny portion of the populace anyway) is just a net negative because it allows some people to pretend they're "doing good" for the environment.