Even after the world server lockout, there were still people unable to participate in the fate because of congestion. Given how quickly the content was eaten through, I don't see why they couldn't put at least a 24 hour gap between phases while the fate runs once every 20-30 minutes. Remove the reward from the fate and have a quest that it flags completion for that in turn will give the reward. After each phase, reset the the quest back to incomplete. This gives people on different schedules the opportunity to participate as well as giving people a chance that were on at the right time, but were blocked by an at capacity zone. I have liked the rebuilding in general, but this particular portion of it was just so poorly designed for a popular mmo.