Finally finished the Southern Barrens questing. I had expected more of the same from Vendetta Point and the refugee camp, but it seems like Gann Stonespire is the only NPC who took Taurajo
personally. Even including the four named NPCs who died. None cried for vengeance, and none blamed Baine at any point. We did kill Hawthorne, calling him "the butcher of Taurajo" but that was just some orc commander ordering it.
Talking with some more tauren between there and Thousand Needles, I get the impression that violence and hatred are against the Earthmother's teachings. Even with Grimtotem literally invading, it was more "Earthmother forgive us for what we must do to defend ourselves" rather than "hell yeah let's bash some skulls!"
On the note of the cycle of hatred, I get the impression the quests with Mankrik were intended to be the last stop on the questing path, and it ends on a very somber note about losing oneself to vengeance that I find really poignant.
https://wow.gamepedia.com/Mahka%27s_Plea