Fair enough. Dont get me wrong im not knocking the Man U academy its clearly one of the best in the country if not Europe, I personally just wouldnt call a player signed at 16 a product of that academy when most players are scouted and signed and educated from 10+ or there abouts.
EDIT - The Barca list, yeah i defo wouldnt consider a player at 17, to be a La Masia product.
Fair enough, just like "world class" this term is also each to their own. I for one would consider any player who played for academy as academy player.