The split comes again from Zelda's use of magic to bring back Link, the gate of time was created by the goddeses and have a perfect balance between times and changes that occurred, for that reason it doesn't create new timelines over and over it's said that on Skyward Sword, meanwhile Zelda's use of magic to bring back Link to a time in which he didn't embarked on any adventure did created a new dimension because Link wasn't meant to return to that time, the gate of time was never going to be return him to that point in the past, so that sloppy decision by Zelda created two timelines and affected the original dimension of Link, which was the adult timeline in which was completely steered by the gate of time with Link going back and forth in time affecting his future with everything he did in the past, Link was never supposed to go back in time, he was supposed to stay in the future as the hero of time, so sending him back caused two thing: first the child timeline in which nothing happened and Link was never the hero as he foretold Zelda everything that was going to happen, and the other dimension that created was a one in which Link dissapeared after he pulled the Master Sword, as he never returned to the time which the gate of time allowed him, rupturing that dimension creating a one in which Link's adventured ended with him going to the future, so in a way he did die he never came back and Ganondorf succeeded that's the third split.
Now can someone explain to me why is FSA after TP and more importantly why is not a direct sequel to FS now THAT does not make sense