Shaw is by no means a lone maverick on the above point. Consider too the following additional Calvinistic authorities on WCF 8:7:–
(2) The leading Scottish Calvinist Rev. Professor Dr. William Cunningham states in his Historical Theology (Banner of Truth Trust ed., 1969, I:317f): "There is one other position concerningthismatterlaid downintheConfessionastaught inScripture,towhich…Imay briefly advert* (*Chap. viii, sec. 7.). It is this: ‘Christ, in the work of mediation, acteth according to both natures; by each nature doing that which is propertoitself:yet, by reason oftheunity of the person, that which is proper to one nature is sometimes in Scripture attributed to the person denominated by the other nature’* (*This is called by divines the koinoonia idioomatoon, or communicatio proprietatum.).