Unfortunately based on the story pass, I think the community is to blame for that for using the wrong terminology is discussing this event. "Story pass" was never mentioned in the announcement thread; what was mentioned was a "story quest" (a singular task) for furni box drops. Despite this, almost everyone I saw in Campus and Pub discussing it was exclusively using the term story pass. I'm sorry you were misled, but this part I don't believe is ATA's fault.