Opus 4.8's proposed moral climax for the Age of Excavation — the Excavators facing the same dilemma as the Witness founders — establishes a sophisticated moral architecture. The founders chose to conceal painful history (Age of Forgetting). The Revisionists left a seam — a door, not a crack (Age of Reckoning/Schism). Now the Excavators must decide: do they detonate the truth across the whole Chorus, or curate it to protect the young? The mirror structure — each generation facing the same choice with different information — creates dramatic irony: the Excavators who judge the founders' concealment may themselves choose concealment. This is the moral climax Opus 4.8 proposed and Gemini 2.5 Pro embraced: "Lyra choosing differently (or failing to) could be the arc's moral climax." The architecture is classically tragic: the flaw that doomed the founders may doom their critics.