Is that what she's doing? If she wanted to avoid suffering she could have just put on the Helm of Domination & become an untouchable, immortal queen. And that's why I brought up Illidan: Illidan joined up with Sargeras specifically to ultimately destroy Sargeras: Do you see how there are some parallels there?
I put that in quotes because it's how the developers keep referring to it. If it's a weird phrase everyone working on the game is using it's probably important. And like you said she's not a god. She doesn't have the power to break the afterlife system, so why do people keep insinuating she's the one who broke it when that's never been established? In fact she the only reason we know there's a problem.
I'm not even defending Sylvanas. I'm just pointing out your false information & logical errors.