We are not "talking" about superconductivity, we are "talking" about RMNS and evolution. Physics makes sense apart from superconductivity, but "Nothing in Biology Makes Sense Except in the Light of Evolution".
Get the analogy straight: "Nothing in superconductivity makes sense except in light of the BCS theory". The discovery of High-Tc superconductors didn't overthrow the BCS theory, and this discovery doesn't overthrow the theory of evolution. It took me 30 seconds to outline a hypothesis, consistent with evolution, wherein such conserved regions could arise. Reconciling High-Tc superconductors with the BCS theory took a decade.