I agree! Seaweed farming is a totally different ballgame in North America, compared to Asia where its farmed on a mass scale and seaweed has been deeply entrenched in regional cuisines for centuries. There was an interesting study out of Spain a few years ago on food neophobia and how consumers would respond to seaweed if it wasn't part of their culinary tradition. The research suggested there's potential for neophobic consumers to engage with seaweed if it is promoted to them with a focus on its health, wellness, and natural attributes.
A 2018 UN Report on the Seaweed Industry is available here