I liked these because they were for all players, too, and not just max. It made leveling alts fun, or at least broke up the monotony of questing.
BfA had a grandiose prepatch, but I honestly found that to be a bad idea because now the fate of Teldrassil is forever locked behind an event that is no longer in the game. I imagine it might be jarring for a new Night Elf player to level up in the tree only to reach max and have it suddenly be kindling. For as much as I appreciated the story of it (though I loathed what I had to do), locking an important story behind prepatch was a bad idea.