Huh?
her dad, the mad king, was able to burn entire villiages and forts using the dragons they rode.
Right now, the dragons can maybe take out a few dozen men at a time, but still can be damaged with spears and arrows.
Although we haven't seen the big dragon in some time... maybe he shows up gigantic down the road. He's been eating and flying free.
The show moves SO much faster this year than ever before. They spent enough time building these characters that they can do that now.