Addressing stupidity #2: Starkiller's feat
No, he didn't "disintegrate half a 300 meter ship." That's misleading.
So, it split in half, yes, but of the part he still handled (yellow circle), almost half of it was already gone as per the text (red X's)
And note I'm not even factoring the numerous decks and part of the hull that was also gone from under him.