Carlarae's Comments

Graves is being nerfed because of pvp. Howl bomb is being nerfed because of pve; it's useful against all but 2-3 of the beasts of fable, all four of the legendary pets in the celestial tournament, several of the garrison dailies and all of the Tanaan Jungle dailies. My personal opinion is blizzard should make new pets with new abilities that require new strategies. 

The change to cleave is effectivly a nerf to Squirt powerleveling pets, as the best strategy is Sepsis' use of Enchanted Broom and Weebomination, which allows the carry pet to be level 1. All other strategies I've seen require the carry pet to have enough health to survive Tyri's 1-2 uses of Omnislash.