Couple of points just tripping round my brain.
Daenerys has "breaker of chains" as part of her name, she was heartbroken at losing a child and her dragons. Why suddenly does she want to kill rather than save people? Even the most twisted psychopath surely can't turn that far, that quickly.
And this, this morning:
Latest Game of Thrones episode sends curveball to children named Khaleesi
Good luck explaining why your kid went from positively angelic to rabid.
And am I the only one to question, and I know dragons are fictional so we haven't exactly got the fact sheet on them, how those walls had the consistency of an chocolate teapot once the flames got them but people were still relatively intact after their initial kebabing
Surely if it's hot enough to "melt" walls, the people would have been a mass cremation.