My wife and I both enjoyed the animation and voices and look.
It didn't quite work as a parable, since at the end the rats
defeated the dragon thru physical force.
Hello! That's what the dragon was best at - the purpose of the dragon in the story was to be the strongest physical force (BTW, the dragon could have just flown away, no?)
Although I will confess to a tiny moment of disappointment at a thread called "Dragon and Rat" in this forum not being a discussion about Cordwainer Smith.