"What they're not doing is marketing the Dead Kennedys in the spirit of what the band stood for"

This quote by Jello Biafra is referring to the existing state of the Dead Kennedys, a hard rock band from the late 1970s and early 1980s. Biafra is recommending that the present owners of the Dead Kennedys are not marketing the band in a way that is true to the spirit of the band. The Dead Kennedys were understood for their political advocacy and their anti-establishment position, and Biafra is suggesting that the present owners are not promoting the band in a manner that reflects these worths. He is implying that the present owners are underestimating to the tradition of the Dead Kennedys and are not precisely representing the band's message. Biafra is suggesting that the present owners need to be more conscious of the band's history and promote the Dead Kennedys in a manner that is true to the spirit of the band.