That's not forcing. Had they shown her being against it, but did it anyway to not die, yes. If an admin comes in here and tells you to keep posting constructively, they're not 'forcing' you to, you would do that anyway.
Either way, she is 100% to blame for how bad that invasion went and what happened from it. Otherwise it's Sargeras at fault, since he made Medivh open the dark portal which let the orcs in which let Thrall in whom recruited Garrosh whom made him leader to make that order.