That is true. Quite a few people will likely be upset for missing a day for the event due to this.
Sure it's only a few days to get all the rewards, but people can and will repeat it for more.
You're basically insinuating that we should be silent and accept that we were unlucky for something that wasn't even supposed to happen. That's highly unfair and exclusive.
Hey, life lesson: Life in general can be unfair. It's one of the realities of the world. A handful of people get all the good stuff and most get shafted after working their butts off. Complaining about every little thing not going your way is not how to progress in the world. Unfair and exclusive? It was happening for everyone, some people just got a bigger advantage because they were bossing/PQing/whatevering in that time to get the most of the unexpected bug. It may seem unfair to you, but in their perspective they musta hit the jackpot for that short window the game was up for.
It basically means resetting the server data to a previous state, rolling back character progress/purchases/anything that happened within the time of servers going live and rollback.
Eh, everyone had the opportunity for the exp boost had they done the same. As is, the handful that did it got lucky. No reason to make everyone lose because a handful won.