Gotta give the creator credit for doing it in the first place - guaranteed people could come up with worse. Of course its not gonna look professional, its just some kid in his basement most likely. Can't expect him/her to make a Sony quality teaser.
As for the thing itself yeah the quality is kind of bad and its annoying when you see re-used clips from the other movies but like, flipped on a horizontal axis to try to make you think its something different lol. But hey, it wasn't a waste of time to watch.