Here are the 5 myths:
#1 Lutherans don't care about good works
#2 Lutherans hate reason
#3 Lutherans believe in the so-called normative principals of worship
#4 Lutherans believe in consubstantiation
#5 Lutherans follow Melancthon, not Luther
My understanding is
1. Lutherans have a different approach to good works and seem to strive diligently to avoid any impression that one might contribute to their salvation by the least work, which I think can come off as anti-works to some, and perhaps leads to a reluctance to preach works in any sermon, such as to tell people how they should live (e.g, don't wear a bikini at the beach as it is not fitting for a child of God to expose themselves so).
2. Lutherans do not want reason to elevate above the Word of God, and I think this may have sprung from the disputes over real presence during the reformation. Clearly we don't want reason to manipulate the Word, but do use it to understand/interpret the Word.
3. I don't know anything about this one (though I was Lutheran for about 35 years).
4. I never understood the difference between in, with, and under and consubstantiation and I think I may have been taught consubstantiation by a Lutheran pastor (LCMS). But
this site says, "the term [consubstantiation] is unofficially and inaccurately used to describe the Lutheran doctrine of the
real presence—namely, that the body and blood of Christ are present to the communicant “in, with, and under” the elements of bread and wine."
5. I know they mention Melancthion, but follow neither Melancthion or Luther 100 percent. They may well follow Walther (book: Law and Gospel) as much as or more than Luther.