That's the problem, when someone in the horde do something bad, they don't leave, when someone leave a faction when they turn bad, most of the people don't see it as what he did was made by that faction, but only by him, for example, when Magatha and her clan left the horde, most of the people don't see it as the horde these that, or the Taurens did that, they see him as Magatha and her people did that