yeah thats just a refrence from MM if you ask me.
anyway, there is one major point dissaproing this theory for me.
we know that MM occurs before TP.
the happy mask salesman said that after the ancient tribe was gone (so that tribe doesn 't excist anymore) he was looking for majora 's mask.
i don 't know, it is a cool theory but there are 2 many loose ends for me.
mask salesman said that the mask belonged to a ancient tribe for hexing rituals, and "after the tribe was no more, he was looking for that mask". <--- you really forget this part here
so he is claming that that...