  Recently, it was shown that quantum steerability is stronger than the bound
set by the instrumental causal network. This implies, quantum instrumentality
cannot simulate EPR-nonlocal correlations completely. In contrast, here we show
that quantum instrumentality can indeed simulate EPR correlations completely
and uniquely if viewed from the perspective of NAQC. Implication of our result
is that the entire set of EPR-correlations can be explained by the LHS model in
the instrumental causal background if viewed from the perspective of NAQC.
