The Warmind failsafe was an If > Then code. That means it could only happen if events took place that would spell demise. The Alpha Lupi dreams are more or less just describing the Traveler's terraforming, when it first saw the unblinking Nine, and the insignificant half-smarts that refuse to accept the unavoidable. The Warmind Failsafe describes the final step being to get the Traveler to stay, which would mean it probably was not going to.