There's no reason to care. It's one Familiar, and there's a whole population of them out there. One Witch that you fail to kill because you pissed away your magic on one lousy Familiar will over time drop dozens or hundreds of Familiars to replace it. Mami may have the familiarity with her hunting ground to know how much energy she has to waste on Familiars without compromising her ability to recharge herself, or that could have been hubris on her part, but certainly neither Kyouko nor Sayaka has any reason to be confident in their ability to waste magic and still keep going. The consequences for misjudgment are dire.thagguy said:Any way you slice it, letting the familiar go was pretty horrible. If she had just came in after and berated Sayaka, it would have gotten the point across just as well without Kyoko arguably crossing a line that a lot of people can't forgiver her for. You wouldn't even really have to change the dialogue too much, and Kyoko comes off as much less of a monster despite still advocating basically the same thing, just because she didn't do anything on screen. It also makes it more ambiguous how much of what she says is just "break that asshole's limbs!" style goading and how much is her actual MO, where you can't dispute that she let the Familiar go.
Furthermore, jumping in and attacking Sayaka after Sayaka has exhausted herself in a fight would effectively commit Kyouko to murdering Sayaka. Kyouko's plan was to intimidate Sayaka without killing her, as can be demonstrated by her repeated use of non-lethal attacks and the repeated openings left for Sayaka to flee. Defeating Sayaka at Sayaka's full power shows Kyouko's greater power, while sucker-attacking Sayaka when she's already weakened shows Kyouko's weakness. If Sayaka was forced to flee in such circumstances, Kyouko would expect Sayaka to come back for another fight after recharging to full power, because they would both know that Kyouko tried to win with a sucker-punch instead of a straight fight. That's clearly much worse for Kyouko, because she has to spend more magic to fight two fights than she would spend fighting just one even if she can win both times.