Maybe you're right about Cyclops having a better plan but different of writers really believe Scott would have approved what Emma did in the face of the circumstances.
And please the remedy they're using with Rogue is not a cure.
Emma saved thousands of mutants by destroying the mist and probably delayed in months the saturation of the inhuman mist on the planet.
Respect Rogue and the mission she accepted joining the UA team but will never accept somebody blame Emma, Storm or anyone for anything the Inhumans did.
The mist is a mess of the Inhumans they are the enemies.
They will probably sacrifice Emma for the sake of the Inhumans not that this will work with most of the mutant fans but it is possible that she dies at the end of the story after all we have not any news of her in Ressurection.