The battle matters a lot in terms of it being a useful myth for propaganda during the forming of the German nation state after its unification.

I had to learn about it in art school. Specifically, about a German artist who criticised how eagerly post-war Germany was to forget it altogether, pretending the monuments raised for it and the operas written about it didn't exist. As if pretending it never happened is somehow better than remembering that what happened was wrong.