the same problem.

Vader was introduced as a pure villain. In fact, he ended up being probably one of the five greatest cinematic villain's of all time. Then they went and tried to tell his backstory and show how a kid grows up, trains, becomes a jedi, and transforms into a villain.

When you storyboard that concept it works. But when they sat down to write the movies, it didn't. They had your traditional plot-driven writers trying to develop a character to a specific endgame.

I'm assuming HBO had the intel from GRRM that Dany was going to go cuckoo for coco puffs with her obsession to win the throne and free all those oppressed. Like Vader, that plot development makes perfect sense when you storyboard it. But GRRM is sooooo much better at character development than traditional, plot-driven Hollywood writers, he could have made it work