You seriously have an unwaranted faith in Golden if you believe that.I don't think the "magic" of this particular relationship is intrinsic to Anduin or his bones - rather it's a curious interaction between Anduin's more or less permanent injuries from the Divine Bell incident and the power of the Light that is healing him on the same permanent basis. My take on "Before the Storm" doesn't have Anduin's bones reacting to rightness or wrongness, but rather to whether or not his emotions or decisions correspond to those aligned with the tenets of the Light. If Anduin succumbs to anger, rage, hatred or what-have-you then he distances himself from the Light - this distance interferes with the ongoing healing and causes him to feel the pain of his old wounds, whereas being in alignment with the Light strengthens the connection and the pain recedes.
This may or may not also be linked with the strange prescience the Light seems to grant some of its most attuned users, such as Velen - Anduin may feel disturbances to the vision of the Light as pain from his wounds, probably caused by the same distancing of the Light for other reasons. In this sense, the Light may be giving him a crude (and somewhat painful) form of precognition, although not one as useful as Velen's ability to actually divine possible futures.