So what was the point of the server upgrades when I can't continue the MSQ?

[Hyperia]

While you can say it was an oversight, it's a really bad one. They used this mechanic in 3.55 with no problems because not everybody hit it at the same time. This time, it's at the beginning of the MSQ and everybody hit it at once. 300,000 players hitting the same instance solo.... well, you do the math.