What is the consensus about 2N2C? Is there any broad consensus on its truth, or utility?
That's the fun abbreviated title of Boyd's No Non Causal Contribution (double N, double C) thesis, see Constructivism, Realism and Philosophical Method:
Here then is the insight necessary to an understanding of the metaphysical-innocence thesis: the sense in which realists and empiricists hold, while constructivists deny, the metaphysical import of conventionality in science is that constructivists affirm whereas realists and empiricists deny that in the relevant sense social conventions in science determine the causal structure of the phenomena scientists study. I add “in the relevant sense” because, of course, scientific (and other) conventions are a matter of human social practice and human social practices themselves have causal effects including causal effects on the causal structures scientists study.
Since this claim is philosophically uncontroversial, we should understand realists and empiricists as affirming and constructivists as denying the No Noncausal Contribution thesis (2N2C): the thesis that human social practices make no noncausal contribution to the causal structures of the phenomena scientists study. If the accommodation thesis is accepted, then 2N2C exactly expresses the metaphysical-innocence doctrine whose acceptance differentiates realists and empiricists from constructivists... My experience has been that philosophers’ reactions to 2N2C and the analysis of constructivism in terms of it are quite varied. Some have thought that a demonstration that constructivists must deny 2N2C would amount to a reductio ad absurdum of constructivism while others have thought the interpretation of constructivism offered here entirely fair to the philosophical intentions of constructivists.