I figured that it was just a repeat of the New Avenger scene but that's not really my point. They blew up one Earth, what's to stop them from blowing up another? Further more, why is it ok for them to make these decisions but condemn somebody else for making similar decisions? They can create and possess the technology to destroy an entire planet and then use it which is sure to draw the attention of forces we can't comprehend, yet Scott Summers wants to harness the energy of a cosmic entity to save his people and he's the jackass?
What makes Tony Stark or Hank McCoy's judgement more infallible than Scott Summers?
Well, not to reopen old wounds yet again...
But it's apples and oranges. It's ok for them to make these decisions because there is no alternative. It's do what they did, or the entire planet is a goner. This is not at all a similar scenario to Scott taking it upon himself to do what he did in AvX. Scott Summers wanted to harness the energy of a cosmic entity which had a history of completely razing entire civilizations and planets, and starting things over (and also corrupting its' hosts)... brilliant idea.
Moreover, he was making a unilateral decision for the entire planet in order to save a small percentage of people (and turning it into a police state in the process) which is, again, different from the Illuminati trying to save everybody
But regardless, they're not meant to be portrayed as being in the right. It's been a point in the book that what they're doing is pretty terrible, but necessary.