Originally posted by The_Tempest
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9:51. We don't know how long it took for Tython to rescue his companions. The bottom line is that Vitiate apparently had enough time to gather his energies (which makes sense, since he's recuperating on a powerful dark side nexus that sits atop another powerful dark side nexus). The fact that the mission description doesn't provide regular reports of Vitiate's convalescence doesn't change that.
But Scourge saying that doesn't necessarily mean that Vitiate was actually able to recover his power. Scourge fears Vitiate, so he could've been speaking from that fear. After all, he betrayed Vitiate.