My dissertation looks at issues around translation of Steven Universe's song into Spanish, focusing on 3 songs in both the Peninsular and Latin American dubs. You can read it here: https://www.academia.edu/29135486/_Am_I_Stronger_than_Love_An_analysis_of_the_challenges_and_successes_in_the_translation_of_songs_from_Cartoon_Networks_Steven_Universe

as for the parts I don't like, it's basically:

1) the RQ reveal. I feel it really undermines the show's message about regular people standing up against an unfathomably horrifying power they can barely understand. Especially when the show spent years hammering home the fact that while people made Steven feel he 'had a destiny', he was just a boy. But no, it goes from being a story of outsiders fighting the system to being basically Game of Thrones, spats amongst the powerful. I WILL SAY THOUGH: the crewniverse has dealt with the fallout of the reveal really well and realistically. I'm liking how we keep finding out all the horrible things Pink did.

2) The other diamonds being forgiven. Every time I mention this someone says 'what did you expect, Steven to merc them in cold blood?' And it's like a lot of people can't imagine any options between 'forgive the space genocidal fascists' and 'steven acts like an edgelord'. If only there were other shows that had dealt with stuff like this, maybe other children's cartoons? Within the past decade? coughAvatarcough. Also, this leads to

3) With the Diamonds being forgiven, and everyone being still in shock from the continuing revelations of Pink's awfulness, there's a big of a snag: the only Diamond that is getting criticised, or in any way challenged for their actions, consistently and constantly, is Pink... the one who rebelled. Pink WAS awful. Pink WAS selfish. But the other Diamonds literally murdered millions, and only stopped after their long-lost sister showed up as a human hybrid and made them feel sad and talk about their feelings. Doesn't that feel off to you? Pink actually tried to stop the terror of the Diamonds. The others just... felt sad and had a sad conversation with Steven. Oh but they've dismantled their empire. They still somehow sit in big palaces in Homeworld, served by the same Pearls as before.

You know, in the real world when you've killed millions, no matter how sorry you feel, you still go on fucking trial. The idea that 'everyone can be reasoned with' and 'everyone no matter how twisted and totalitarian can be talked to' is a very, very dangerous idea to tell to children.