I'm going to do my best to give my 2 cents, since I work directly in seaweed and shellfish. There is a ton of potential for seaweed, but it's really something that has to be marketed more and even at that, it's more of a novelty food. (To the west) The markets that this seaweed would be going to don't have it incorporated into the diet like Asia. Could a slow change be made, sure, but realistically, that's a cultural change. We never had a big reliance on sea vegetables to fulfill our dietary needs, and it's unlikely that we ever will. While the potential is there, many foods have come and gone as health fads. It's part of living in privileged countries people 😂