Except retribution against attackers is normal for tauren just like worshipping the Earthmother is.
Baine abused his power to disrespect Tauren and Horde culture, whilst backstabbing his allies and punishing the defenders of his own people for doing the job he failed at.
Baine exiling Jorn Skyseer and the survivors of Taurajo for defending the Tauren shows he doesn't care about the Tauren, just himself and the Alliance.
Here you go.
Try to remember your own posts. Its hilarious someone can say Anduin is too peaceful, yet continually argue "I brush off the deaths of my own people and exile my own citizens for defending themselves" Baine is the best Horde leader possible.
Yet a lot of posts seem to say Sylvanas being a bad leader makes Baine not a traitor to the Tauren and the Horde who has continually disrespected their culture and put them in danger.