There are many complications. Like Miguel says that when he was in the dead sea, it wasn't that way for a while, well atleast not up until 1010. But it doesn't mean that the Dead Sea automatically appeared there. Miguel would have been destroyed if that was true. The Dead Sea must have appeared slowly, because the dimensional split would make 2 copies, and both would go on their own path.
Oh, and the island destruction theory is probably true. The distortions of the FATE islands are what caused the Dead sea to be destroyed. If you look at the FMV, the fire comes from the 3 islands, and I have pics if u want.
Also, The date of The Tower of Geddon is 2400, not 2300 as it should be. The Tower of Geddon was built probably in 2400, so there's also that problem.
Also, the main thing blocking the Dead Sea is 1) The poisonus coral and 2) The Masamune.
Whatever Lynx did, he was able to pass the coral, unless he was the one who used the Masamune.
Also, after many quotes, it seems that NPC's said that a dragon rules the Dead Sea. And that in particular is the Sky Dragon because he was there. Even Harle says that the Earth around the Dead Sea was condemned by the Dragon Gods.
So what the hell is going on?
And why does Miguel say that we have to destroy FATE so that we can build a "new future for humanity"? Is FATE causing this? Well if FATE can remove the Dead Sea, then it may have caused it to appear.
Also, before you get to the portal that get's you into Leene Square, Harle comments on how that even though they're inside a building, something should not be there, It looks like this huge ventalation thing, or the wings of the Blackbird Oo