I just saw it again after reading this thread, and liked it at least as much as the first time (very rare, for me). I didn’t find her to be overpowered. Especially in comparison to Luke in iv. She’s clearly a prodigy with the force, like Anakin. I don’t recall Luke ever being called exceptional (only strong) in the way Anakin was. Like Zuko and his sister in the Last Airbender series. Presumably, if Ren hadn’t been wounded, their battle would have ended differently.