Alright, re-read everything better. Bit of head lag there. ovo
Yes, it is "not supported" anywhere else, as well as a lot of things in the HH. The games has a vague and almost non-existent sense of "continuation" to the last filled with intense contradictions when looking at the games by themselves.
At the end of Ocarina of Time, Link still had the ToC, yet the piece also appeared in Wind Waker, a game that according to the HH, is in a separate timeline, while simultaneously appearing in Twilight Princess. Everytime the timeline splits it creates a new set of Triforce?
That is unsopported, but the canon shows otherwise.
Why is this particular case any different?
Keep in mind, I'm not even arguing that the feat is legit, but the argument that "well, is unsopported/contradicted" I don't agree with, when we have similar cases with the entire franchise.
Nothing contradicts Majora's case, even while unsopported before (which it is now, as someone stated earlier stated the HE was created to expand on things in the HH).
It would simply be a retcon, imo.