The video was interesting though when comparing it with some stuff I read on wikipedia today I wonder how accurate it is. The wikipedia page stated lupin had a reputation for draining the soil and the video said the exact opposite. I also thought soy was unfairly dissed. What they had to say does not apply to organic soy grown for human consumption. The problems with soy are with overdoing it to feed livestock.
I find lupin interesting because it is new to me. The only advantage it has to me over soy beans is the lower calories, but soy has more protein, more calcium and is far easier to prepare ( 20 min in a pressure cooker ).
Reading some descriptions of what you have to do to prepare lupin beans scared off from buying any today.
I might still try it, I saw some interesting methods on the net.
I once made seitan from scratch, from flour, kneading dough all day long to work the starch out. Making lupin, at least once, looks like another adventure.
The preparation probably has been the thing holding lupin consumption back and is probably why soy knocked it out of its niche in Europe. The lupin farmer in the article was smart to come up with the idea of lupin based mock meats to create more demand.
LOL, maybe I can find it canned

I'm sure if it is good it will find its way to the US
I was amazed at how clean the processing plant in the video was.......leave it to the Germans.