Who did things that didn't make sense?
Danny cracked when she found out that the one thing she always had going for her was gone. The throne was no longer hers by right, and she had never been rejected before. She even said ok then i'll have to rule by fear instead.
Grey worm might have been her moral compass, but when one of cersei's men cut his girlfriend's head off in front of him he took it badly.
Varys was pro danny until he saw danny kill samwises dad and was like uh oh she's bad. He saw jon and decided that was the realms best chance. He died trying to be a hero, which is a fitting end considering his comment to ned in season 1.
Tyrion wanted to avoid all the death so he sided with danny over varys. That was a mistake, but only because he put all his hopes in his brother's abilities, which has always been his flaw.
Jon and sir davos and a bunch of other good guys were going to end cersei's reign before looking at each other like are we the baddies? And then they retreated.
Jamie came back to be with Cersei and got captured. Understandable, but i can see calling it lazy writing. But it was his arc. He went from a bad guy, to a bad guy with redeeming qualities, to us hoping he was a good guy with a bad past, but then finding out he was always a deeply flawed good guy who threw his morals and everything else out the window when it came to cersei.
Cersei didn't have milk of the poppy this time, because she wasn't protecting her child from getting killed. She needed to live because she was trying to keep her unborn baby alive. She stayed far longer than she should have because she had no other choice and she couldn't believe that she had finally lost.
Yuron ####### sucks.
The hound had planned to kill his brother since forever. It was foreshadowed back in early season one. And again in season 7. That was the only thing left driving him.
The mountain was going to protect and serve cersei over anything else except one thing.
Qyburn didn't know that and paid the price.
Arya went to kill the queen then clegane talked her out of it. She took cover and saw good people die and now she's pissed.
Everybody's decisions made sense. You might not agree with them - especially that one character everyone liked who went on an hour long mass murder spree, i know i was like hey, stop that. But it wasn't out of character.
And the best part is that they built up lannister vs stark as the big confrontation and targaryen was always just kind of there. This was the real conflict. Danny and her birthright and her dragons and killing zoron zoro ducksauce and the wizard of blue lips, and killing the masters to take the unsullied, and burning up the dothraki dudes - she's lain waste to everyone who stood in her way. The lannisters schemed and murdered their way to power and kept it through money and armies. The starks were always the good guys who didn't want the 7 kingdoms. This makes sense.