Because they are deeper in the underground of music than before. At the moment, besides pop-rock and hip-hop, the electronic music scene seems to be the most productive one. If you are a fan of more ambient and electronic music, you might enjoy some of it. Still, as I am not that familiar with those bands, I am not the right one to recommend some acts
While I still can not enjoy Tangerine Dream or Klaus Schulze, my appreciation for Can as well as Kraftwerk is growing. Now, expanding my Eloy-collection, I realise that a lot of great music comes from my homecountry. Crazy but somehow beautiful..
While on the more symphonic or folky side, there also are bands like Hoelderlin or Novalis, who also are worth a listen.
To continue local patriotism (

), I strongly recommend Peter Bursch and his Bröselmaschine. They released some great albums, but are rather unknown. While probably not being as jam-focused as others, their style is fascinating to me.
What distracts me from some German groups are the lyrics. It is something else for me to hear them in my native language. While I understand English or Spanish, I don't take care of the lyrics that much. Especially Electric Orange make it difficult for me to like them..