I don't think the Sex Pistols should be in the rock and roll hame of fame.
They put out one album, right?
Does a baseball player make the baseball hall of fame for having one 20 game winning season or winning one batting title, and following it up with mediocrity or nothing at all?
Does a football player have one 2000 yard season, then blow out his knee and retire, and get rewarded hall of fame status?
Sex Pistols=one great, important record. But definitely not hall of fame material.