You didn't exactly answer the question regarding Origami vs. rib and stringer frame with over plating. You say it's "new way" vs. "old way". There are many things that a proper metal fabricating shop can do with bending and shaping plate. But most of your boats seem to be one off's by "Do it yourself" builders with limited skills, equipment, etc. So still, why isn't the frame method still better than Origami? What are the disadvantages of frame method vs. Origami, or conversely, what does Origami offer over frame method? Once you weld up the material, the steel is more of less continuous plate by either method.
Origami drastically reduces the number of meters of seams you have it cut, fit , grind and weld. You would have to look at my book, Alex's video, or the step by step building photos on the origamiboats site, to see how we eliminated the need for lifting , making large plates much easier and quicker to use than a lot of small plates, or eliminated the need for bending equipment, or a well equipped shop.
I pulled Dale Deforest's hull," Exit" together in two days . The steel arrived Thursday afternoon, and by 11 pm Friday, the hull was together, the transom in, and the stringers and all the bulwark caps on. You couldn't get out of the starting gate ,using a fully framed method, in that time. Sure a first timer would take longer ,but a lot less time than using the fully framed method.
When a sheet of steel comes form the supplier, it is fair. The less you have to do to it, the fairer it will remain.
Sometimes we can only get 20 ft sheets, which adds to the time, and takes careful techniques to get the seam fair . It would be a huge amount of work to do that over many seams, with far less fair results, and a lot of filler required.