Rey wasn't a strategist, or a battle tactician. But she'd read a lot growing up. The defeat at Jakku had at least in part been because of mistakes like that. Sometimes a victory could be a Pyrrhic one.
But all that fell away as she tried to absorb what Finn was telling her. "How did they find you in Hyperspace? How did they get so strong so quickly? God, I need to get Skywalker to come with me faster!"