"We wanted her to just be death from above as seen from the perspective of the people who are on the business end of that dragon. In most large stories like this, it seems like there’s a tendency to focus on the heroic figures and not pay much attention to the people who may be suffering the repercussions of the decisions made by those heroic people and we, we really wanted to keep our perspective and our sympathies on the ground at this moment ‘cause those are the people who are really paying the price for the decisions that she’s making." – Dan Weiss

I wonder if he's ever read these two books called "A Clash for Kings" or "A Storm of Swords" which had a lot of stuff like that, which was elided in a TV adaptation. Arguably that concept is a major theme of "A Song of Ice and Fire" and part of the appeal of the series. It kind of feels like a concept you should earn by servicing it consistently over the course of the whole story, instead of tacking it on as gratuitious moral pandering and an excuse to show more violence and destruction. You don't service that theme by showing these consequences as the result of a bad guy's actions, when you are clearly portraying the attack as an unhinged lashing out by someone who's lost her moral center. If you want to send a message about consequences of decisions, show the side effects of good decisions, like how people suffer for Stannis' & Robb's decisions to resist the Lannisters' coup and murders of their relatives, even though they are moral commanders, who restrain their men and punish atrocities.