Those Debuffs/Buffs have been changed to be available all the time, same with those Mogu Rune things(they give increased critchance+ increased critdamage) but they are bound to the area.
Still funny when farming mobs there.
The Lushrooms, and the Mogu Runes, can be simply picked up, actually you need those mushrooms for some 300 stat bufffood where the recipe is looted from the caches wich you need to loot a key for from the mobs.