Nah it was perfect. Korra pretty much said to Kuvira what Bolin said to Mako before
Kuvira was never TRULY evil, just misguided. I don't think any of the LOK villians were REALLY evil. Take an Ozai from LOK, that nikka was just evil :blackye: No motives, besides a thirst for power. All of the LOK villains had good intentions, that they went about all wrong.
Amon, wanted equality for everyone
Unalaq wanted to unite the spirit world and the human world
Zaheer wanted freedom and no leaders
Kuvira wanted order and stability
All that brought on by things they went through as a child. Kuvira was more crazy than she was evil. Her parents left her, and in a way, she thought was she was doing was right.