The critics of Luther's doctrine, like the Minister of Audio-Video at Victory of the Lamb, like to blame dead orthodoxy.
C. F. W. Walther preferred the term orthodoxism, since orthodoxy is not dead.
Unfortunately, Walther instigated the biggest problem of all - worship of the synod. The Missouri Synod has been in love with itself from the beginning, and that has spawned a number of weak sisters (ELS, WELS, and the nano-sects) who also adore their own institutions and their recently dead teachers. Some are not even dead yet but are revered nevertheless as Equal to the Apostles (Constantine's favorite term for himself).
As Westcoast, a WELS pastor, said, "We went too far with this UOJ business. Now we are too proud to admit it."
The Lutheran Infallibility doctrine holds that no dead professor can be wrong about anything. He is infallible ex cathedra, or perhaps ex crypta. The professors with a smattering of Latin can die happily, saying with the Roman emperor, "Puto ut deus fio. (I think I am becoming a god.)" The greater the error, the more it is honored.
That does not mean the synod escapes criticism. No, not at all. The expert graduates of Fuller Seminary are allowed to criticize the synod whenever it is right, Luther whenever he is right, all past teachers whenever they are right. But woe, thrice-woe on anyone who points out the obvious - that the Lutheran sects have embraced the Spirit of This Age and rejected the Means of Grace.