It was. I've been arguing against the theory for a year. But people take it as canon. I haven't seen the video in the OP, but I helped someone put together another one. 

https://www.youtube.com/watch?v=UO4CBAAWqpw

I actually like Matt Patt's game theory. It's really entertaining to watch. The Majora's Mask video was pretty good, I thought, as well as his other videos.

My question for HMK is why didn't he act sooner? There was enough evidence to disprove the theory right when it came out. GT used evidence from a passage in HH that disproved the theory.

I have no idea why are people so obsessed with wanting certain Nintendo games having a dark, messed up story .

Meh, it's just a game theory.. I've personally never read too much into The Game Theorists' videos!

This was already debunked by playing the game as far as I was concerned, it was unfounded to begin with. I don't see Link dying at the start of MM .

Hey, It's just a theory... A game theory.

I bet someone has already done this, and someone else will do it again.