If I interpret what I read correctly - that because of the new design there's no turning moment, and that hence there's no point at which the boat would capsize

If I interpret what I read correctly - that because of the new design there's no turning moment, and that hence there's no point at which the boat would capsize, and all energy is thus put into forward motion, that you can just put a bigger sail/wing on it to get more energy from the wind, and go even faster, linearly with the size of the wing (minus some extra weight overhead). Basically, if true and I'm not missing something, the only limit to the speed has become material strength and weight.