I think a problem with using Tyrande in the Azshara patch is that it was also doubling as the “alliance and horde learn to trust and work together again” angle and there’s no sensible way to do that without undercutting Tyrande’s “vengeance at the cost of my life” angle even more, because the truce-to-lead-into-8.2.5 was going to happen no matter what.
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