Running the original order through Google translate, it seems that their specific beef with Apple is that not including the charger results in a product that is "incomplete" and therefore not functional. I guess I understand their point, they also go on to state that it is not demonstrated that there is an environment benefit by said non-inclusion which seems a bit bizarre and trivially easy to substantiate. If just one customer doesn't buy an additional charger because they already have one, then I guess there is an environmental saving.
I'm happy to bash Apple like the the next guy, but it seems a bit of a weird stance.