What does that matter? It came from blizzard originally, and they received windfall money for it. The resources used to develop it were used for it and ONLY it with full knowledge that it wouldn't be obtainable in-game.
Does "fewer people" having access to something that's not obtainable in game justify resources going to it? Because that seems pretty counterproductive to me. "Oh it's OKAY if they use up in-game resources for something out of game, as long as as few people as possible in the community, who's development time it's 'wasting,' actually get it in the end."