#4
Although I believe there is merit to that correlation, it must be remembered that as a matter of principle in Kohlberg's work, no stage can ever be recognized on the basis of the content of moral ideas. In principle, one can be post-conventional and espouse traditionalist views, and one can be stage 4 or lower and espouse progressive views. The difference has to do with the "sophistication" of the arguments and the logic, not the content. 

For instance, B16 is certainly post-conventional in his moral reasoning despite his traditionalist moral conclusions. Once faith gets involved, the whole thing gets more complex. Still for the odd traditionalist here who exhibits less education and lesser awareness of relevant facts and little capacity to defend there views beyond appeals to authority, I think Kohlberg applies.