No, a timeline doesn't change meaning because they said it does. Seriously, you may as well say "I ain't gotta explain shit, because Magic". And people hate plot device magic. It's lazy and uncreative.actually they can, since they own the franchise they could say the timeline is a big circle and that would be the correct time line. The time line doesn't even have to be a correct pretrial of a time line to be one since this is a fantasy game and not every thing has to make sense.
It's a series of events and outcomes. It's the official version of the events, and what occurs when what happens. A timeline doesn't fork. It's a straight line. It forked? No longer a timeline, as it's a system involving "what if's". It even ignores the fact that the Adult section of OoT doesn't happen when link wins. He won, gannon didn't, QED the Adult section of the game didn't happen either. He is a kid again. And stops the whole plan before it happens with his knowledge of what happened and how.