Three distinct quantum conclusions

1. Resource sensitivity. A nonzero contrast certifies dependence on the specified node-basis coherence under the admitted controls and detector.

2. Alternative-family separation. A positive robust gap separates only the declared accessible record families. A population-only alternative cannot reproduce the phase-label task, but an alternative carrying the label in an extra classical register may do so.

3. Computational advantage. A speed, sample, memory, or query advantage needs a task family, input-access model, baseline class, and resource accounting. The two-level pilot proves none of these asymptotic claims.

A coherence resource can also worsen an oriented score: replacing ${\rho }_{+}$ by ${\rho }_{-}$ reverses the sign of the $P_{+}$ contrast. A resource statement therefore needs an orientation and task, not just a nonzero absolute magnitude.