I've brewed pilsners for years and have done many different varieties of step and decoction mashes. Honestly, the only difference I've noted in the finished beer is the color.
Like everything else in this hobby everyone has a different opinion. To each their own. I just can't justify a 7-8 hour brew day with no recognizable improvement in the finished beer. Not going to waste my energy trying to change someone's opinion though.
You must've been on the german brewing forum. They'll kick you out if you argue with them too much. hahaha