They added the tokens that doubled rep gain and the daily rep boost for dungeons and the zandalari rares that popped every 30 minutes that gave rep for the factions removing the need for dailies
Again it was a huge problem that definitely caused burn out but by 5.2 it was gone and the only remaining grinds were legendary rep, thunder king trove, and Dino bones.
You didn't enjoy the daily grind and neither did i...until the last patch where I used it for gold