Yes, seedcorn, that is the context of the ruling.
HOWEVER this ruling sets precedent that can then be used to justify just about any restrictions on a citizen's ability to raise their own food.
It would be nice to believe that the government would never try to restrict our rights to grow our own food, but I think it is important to know what legal precedent is out there. If our government can justify torture, I think it could justify just about anything. Just my opinion, of course.