Skoll Shorties

By killing Baine she would've ended what the Horde was about, its very identity and its values. Sylvanas has been breaking these values and been ignoring the Horde's customs the entirety of BfA. In my eyes the Horde that Thrall, Baine, and Saurfang represent is the right one.

Sylvanas' goal is the Horde' survival and she doesn't hesitate to cross lines to achieve them. As much as I hate defending her, the logic is sound(Something Saurfang himself agreed to in A Good War). Philosophically? I agree TeamSaurfang show the honor of the Horde. (1/2)

Sylvanas' goal is no longer about the Horde's survival. Maybe at one point it was but she willingly had the Horde's forces flushed down Naz'jatar to remove the "disloyal". Not only that but she also had her own forces blighted to death in the fight for Lordaeron.

Source? I may be able to get some insight if I get more details. For now I'll just say that its likely she's getting paranoid. First in Before the Storm some forsaken sought to abandon the Horde, then Baine put the Horde at risk. (1/2)

The source is from a datamined voice line but honestly, it fits completely well with everything in line with what Nathanos and Sylvanas do. Maybe Baine put the Horde at "some risk" but he ended up gaining the Alliance as an ally against Sylvanas in the process. That's a win.

Well, maybe it was cut off for a reason. We'll have to see if it goes cannon or not. Against Sylvanas, which means the Horde that follows her. Now the Horde risks going MoP and hurting itself while the Alliance continues to gain influence in their ranks.

Following Sylvanas at this point is ruining the Horde as is. She's making the Horde into something it isn't and the Horde isn't going to allow her to ruin it any further. Only together with the Alliance can they end her reign.