Not so much a setback since he comes back on top with a set of bullshit powers totally unrelated to bells or massive falling objects and no real lessons learned about yolo leeroy solo facepulls.
edit: what was his next story arc? ah... run off to the tomb of Sargeras with no real back up. Oh and NOT be the leader of a world power while shit hits the fan.
Ah well ... gotta make Tyrande look good sometime right?