According to another BBC article the environmental impact is significantly smaller.
I'd really like to know how something that is 200,000 times more expensive could currently have less of an environmental impact. I just don't see how you move that much money and don't make an impact.
Potentially, it could be as simple as making soy protein or Smarties (that's an American candy btw) https://www.google.com/search?q=smarties&client=firefox-a&hs...