IT'S A FREAKING WAR!!!! In war, you kill the other side's soldiers, that's kind of how it works. People who keep saying "well she shouldn't have killed those men, blah blah blah" just show that they've never been in a war.
And now, she DIDN'T get everything in dishonorable way.
I'm sorry, but this notion that she's the villain, or going crazy, because she took out a legitimate military target (Jon would have done the same thing if he'd had a dragon while fighting the Bolton's, or Stannis at Blackwater) is ludicrous.
People let their dislike of her cause them to ignore context, logic, and reason.