I don't believe Scott had any scheming to destroy Jean, but if you read Morrison's run you know that Emma was trying to screw over Jean.
Jean was possessed and many events made her lose control. Not excuses for Bishop, but everyone here hates Charles
The point is that even if it is written, if it contradicts everything that was written before it, then it makes zero sense.
And yeah, Emma doesn't like Jean and was quite a jerk to her during Morrison's run. That still doesn't explain her being evil other than editorial needed someone to be evil. Her actions during IvX and after are completely contradicted by Morrison/Whedon and Gen X.
Her actions at a later date (IvX) can't be contradicted by something previously to have happened (Gen X/Morrison/Whendon) when there is in story reason for her to be back pedaling on her sanity a bit and getting a big out of control. And the reason was built in, Scott's death. Whether is was well done isn't of consequence. It's in the story and her reasoning for going a little darker.
It's just a tacky choice of phrasing my dear.
It looks like Mama will be getting some issues just for her.
I love seeing her back. The black king has enter