Well plants do other stuff than only produce food, so I guess the idea is that it might be possible to produce food more efficiently than a plant does, which isn’t that far-fetched.
So it’s not “don’t eat plants” as much as “look, we made this bacteria that can produce a vegetable-soup with slightly more calories per energy input than a carrot”.
Why not just eat the plants?
Well plants do other stuff than only produce food, so I guess the idea is that it might be possible to produce food more efficiently than a plant does, which isn’t that far-fetched.
So it’s not “don’t eat plants” as much as “look, we made this bacteria that can produce a vegetable-soup with slightly more calories per energy input than a carrot”.