I was always under the impression that the Oracle games were noncanonical. Capcom was behind them, right? Anyway, there were other glaring inconsistancies that would conflict with the placement on Sephex's timeline. If I remember correctly, Link had not yet met Zelda, and he just met Impa for the first time at the beginning of the game. I've always just thought of them as something on the side and disregard them when trying to find a timeline for the Zelda series. I feel the same about the Four Swords games, but I've not played those, so maybe I shouldn't judge.

Otherwise, I agree.