The hole in the arguement, is that there are hundreds of books for sale about medicinal herbs/roots in Spain.
People go out picking Tila flowers and many other herbs all year round and most farmicias also sell dried herbs.
But they sell dried herbs - no claims about health benefits or uses for diseases. It's like selling Oregano.
It isn't really going to change anything, the people in Spain, for example aren't going to stop taking their infusions.
Ginger is widely available in supermarkets. It has powerful properties, but it most definitely isn't going to be banned.
The herbal books aren't going to be pulped.
Don't panic. The sky isn't falling.