To draw a non-religious analogy, a computer programmer doesn't need to know who wrote a language to be able to code in it. I'm not sure the analogy fits. I'd

To draw a non-religious analogy, a computer programmer doesn't need to know who wrote a language to be able to code in it. I'm not sure the analogy fits. I'd argue it's more like a group of .NET programmers who had never heard of Bill Gates. Luther is such a towering figure in the history of the religion, it's hard to believe that any Christian, Protestant or otherwise, would not be aware of his role. That a decent percentage said Protestants are Lutherans is just too painful to even think about.