Originally Posted by
Sansnom
Garrosh became a tyrant. He was not like this at the start.
I recall how he criticize Sylvannas in one of the quests at the start of Cata. That she was doing what Arthas had done in WoTLK before and he wanted none of it. Which made sense in my view.
The tide against Garrosh eventually grew to open rebellion. The same happened to Sylvannas. Some of the leaders saw what was happened. She exiled Saurfang. Imprisoned Baine.
Some with sided wit Sylvannas but they will probably considered to be enemies of the Horde.