He didn't need to win NXT. He was already insanely over and WWE made the right call with Barret. They needed to give it to someone who needed the rub, and Barrett was an easy future star, he just wasn't as over as Bryan.
This is the man who will beat MJF at Revolution and Justin Roberts will say "here is your winner and the NEW AWW WORLD HEAVYWEIGHT CHAMPION!!!! THE AMERICAN DRAGON BRYAN DANIELSON