What I can tell of the history is that in much of Scandinavia, Confessions were seen with a rather jaundiced eye since the doctrine of sola Scriptura was held so highly among many of the people. In both Norway and Denmarck, about all that was accepted was the Small Catechism and the Augsburg Confession, plus of course the three historical Creeds those were accepted before the countries were even Lutheran.
No particularly strong or popular theologian ever rose up to promote the Book of Concord in either country. Many of the ministers were simply Catholic priests who became Lutheran on the day the state churches became Lutheran, early instructions to Lutheran ministers were always careful to instruct to distribute both bread and wine to the parishioners.
It's a shame too, those Catholic priests really ended up being the root of the dead state church that lead to pietism as the reform movement. To say the level of knowledge of theology among the clergy and the parisioners was low would probably be generous. Serious study of the Book of Concord would have been a great improvement. Frankly to this day, I would have wished every Lutheran Brethren who bought a copy of Purpose Driven Life would have bought a Book of Concord instead, their study would have been much more fruitful.
I'm not so sure that we aren't actually in the middle of a fight right now as to whether we will be Lutheran in the future. I think we will, but I'm afraid it's going to be closer than I would have thought. Right now, I'm thinking the ordained elders in our rural parishes will keep us Lutheran. I haven't run into a single one that likes the reforms suggested by the "Church Doctor" who was hired by the synod a few years ago to screw things up, oops, I mean fix problems. Another thing we got from the LCMS.
He seems to be rather adamant that being called Lutheran is a definite problem today.
Marv