Yep, the grind is shit and pointless, only introduced as part of Blizzard's "make almost everything in the game take longer" game design philosophy that saw the introduction of Pathfinder, level scaling that buffs mobs resulting in longer time-to-kill, removal of XP potions, nerf to RAF XP bonus, RNG loot and titanforging system that makes it virtually impossible to get absolute best-in-slot without playing seriously unhealthy amounts of time, etc.