This is just one of these things where you cant please anyone.
The Zelda games only hold interest with those who have played them, and the plots are pretty sparse on fine details.
Making a full-fledged movie adaptation would have to be a huge undertaking, and quite a few liberties would have to
be made.
At the end of the day, Anyone who watched the resulting movie that has played the games would be disappointing that
it didn't follow the games closely enough, and everyone else would think it was just another blandish fantasy movie.
And honestly, I love the Zelda series, but does anyone really want to watch a movie where a mute boy trudges around through
the wilderness and preform repetitive tasks in dungeons in order to find a set of somethings in order to go somewhere and fight
a evil magician guy/pig-man to save some girl? Sure, that is seriously marginalizing the plot, but isn't that pretty much the plot of just about every Zelda
game? (gameboy iterations not withstanding)
As for this trailer itself, It should be obvious why Nintendo shut this one down. Really, I know it was a work in progress, but "Saturday morning cgi cartoon"
should not have been the look they were going for. If you want to make media based on an established franchise or brand, it is imperative that you focus your
efforts on being true to the base image of the product. The quality of the animation isn't in question here, it's the entire direction the design was headed in.
You'd think there would have been at least one guy on that development team that stepped back and said "Uhh, what are we making, again ? This doesn't look right."