Oh wait, I found it btw:
https://www.youtube.com/watch?time_continue=113&v=nytpYtLtHpE
Seems to be this apparently. The Grinch back render from the leak is used at the start, shown off for the very first time too on Oct 24th.
In other words, the Grinch content from the leak is 100% legit. Now it's a question of how legit the Smash content is. Would a 50yo Frenchman with a family, who doesn't speak English (I checked his facebook too), go out of this way to create a fake Smash leak at his office just to trick "us kids"? I doubt it. I think Eric was ******** about how much work he had to do, and dun goofed. He posted something he thought was insignificant, and it wound up being actually something SUPER important unbeknownst to him.
Also, he's DEFINITELY not the guy behind the Chadnondorf leak.
The leak is 100% real, best start accepting it. It's legit.