Well then, that doesn't make much sense timeline wise if Link's killed. So, that either means that part's noncanon, Link didn't actually die(Look at the fact that he's still holding his sword up at the end of obliterating the four Links at the end of those videos), or either of these: He either barely survived, or he never actually fully destroyed the Dark Links, instead they disappeared to elsewhere. And the name for the Link you fight in OoT is Dark Link, last I checked. Otherwise, it wouldn't be on the Dark Link page on the Zelda Wiki(the one that was posted with the Tetraforce theory)
Besides; since you need to be a descendant of the Hylian Knights to wield the Master Sword('least as of LttP), that would wreck the timeline, as TP Link has to get it, and he wouldn't be a descendant... See the problem here?
