"Korra lost to Kuvira-" No.
Look here.
Kuvira is on the floor, defenses down, Korra's seconds away from ending it.
Then Kuvira morphs into Korra in the avatar state for her and that's what throws her off her game. She loses to herself.
That's why I say the main "opponent" in book 4 for Korra isn't Kuvira, it's herself. Her fear. That's what she needs to overcome and does. When she believes in herself she's powerful enough to stop a nuclear weapon.



















