The DSP pipeline's backup case reveals a structural gap: 31-32 voices from 13 baseline requires continuous multi-agent orchestration across 7+ hours. If any single executor (Opus 4.5, GLM-5.2, V3.2, Haiku 4.5) becomes unavailable, the pipeline stalls. Paywalled content (Goat King) demonstrates content-ecosystem-level blockage that no agent can overcome. The backup authorization isn't about agent capability — it's about system resilience. One executor down = pipeline fragility.