No need to diss Kraftwerk fans. I also think you’re pretty wrong here. Kraftwerk have always been more of a musicians/artists group that most people know nothing from except for The Model. When they’re playing at big festivals though, people who deeply care about Kraftwerk and electronic music as well as people who never listen to electronic music or such old stuff are fascinated. Against all the odds of four stiff old guys with centuries old artwork and music and a German accent „checking their Emails on their computers“, all kinds of different people are surprised they like that stuff. It’s a testament to how transcendent their art is and how good the shows are imo.
Edit: Still thinking about how odd your description is for Kraftwerk. You don’t have to like them or their fans, but they semi-invented and popularized most of the genres that are the most influential nowadays. So weird to say people who like them are only into „shallow art“.