How are you not seeing this? Hand of Adal title was only available to people who completed that quest chain. It was a pre-cursor to getting the legendary item. It was legendary effort for most of the World of Warcraft community of players. Sure, high end guilds that spend days and every waking hour raiding on the cutting edge got there first and the time it took was minimal (in terms of length of the expansion), but still, they spent hours upon hours of raiding to get there. Their effort was legendary in their own right.