I am not German so maybe I am missing something but I can’t really see the equivalence between Wolfsburg and Leverkusen against Hoffenheim and Leipzig
in general the two broad categories of german clubs are "tradtionsclub"(tradition club) and "Kommerzclub" (commercial club, the plastics).
we do make further distinctions within that second category (Leipzig is seen as by far the worst, then hoffenheim and then wolfsburg and leverkusen) but what they all share is that they are controlled privately and undermine 50+1, so they are grouped together as plastic
in general the two broad categories of german clubs are "tradtionsclub"(tradition club) and "Kommerzclub" (commercial club, the plastics).
we do make further distinctions within that second category (Leipzig is seen as by far the worst, then hoffenheim and then wolfsburg and leverkusen) but what they all share is that they are controlled privately and undermine 50+1, so they are grouped together as plastic