> seems to indicate that FGM reconstruction actually seems to have negative outcomes post-surgery.

> Longitudinal data indicate that approximately 22% of women who undergo clitoral reconstruction experience a post-operative decline in orgasmic experience [25, 26]

From [25] abstract: Most patients reported an improvement, or at least no worsening, in pain (821 of 840 patients) and clitoral pleasure (815 of 834 patients)

So, I think the quote needs to be interpreted as surgery, even though beneficial on average, still having a pretty high percentage of negative outcomes (22%) and nerve mapping potentially helping reduce that.