It hurts her in general, because her damage is no longer amazing, but it doesn't hurt her here because she's already not doubling Citan to many interps (not if you're Monkey/CK granted). Her one-hit damage improves some because of those 4-5 PCs who now just have horrible damage, which might cause more issues for Citan's healing.
(Also I have some problems with the interp in general because it does not reflect how bad speeds like Ross' and Kyle's are in-game where they fail to double a huge number of faster enemies. 17 AS fails to double 45 of 97 enemies in Last Hope, for instance. Even 20 AS fails to double more than a quarter of the enemies (25/97).
EDIT: Though it is true that once you hit 23 AS, you're basically in the clear. On the other hand, I can justify a difference between 23 and 26+ in the DL because if you're only 23 at endgame, you were likely having issues doubling SMs in Last Hope. Unless, of course, you're Ephraim, who just doesn't like the DL. Bad DL!)