  The view exists that Bell-tests would only be about local incompatibility of
quantum observables and that quantum non-locality would be an unnecessary
concept in physics. In this note, we emphasize that it is not incompatibility
at the local level that is important for the violation of Bell-CHSH inequality,
but incompatibility at the non-local level of the joint measurements. Hence,
non-locality remains a necessary concept to properly interpret the outcomes of
certain joint quantum measurements.
