I'm obviously not privy to the details of the settlement, but normally they include iron-clad non-disclosure agreements with severe penalties.I think it's completely fair. They want to assure no public funding went to the settlement.
The issue though is, if they're trying to get to the bottom of who the players were it seems neither the victim or lawyers ever identified the players, including in the lawsuit. The players were named as John Doe's - so unless the players themselves admit to it, I don't know how far an investigation can get unless she agrees to come forward with the names.
A settlement is a means to resolve a dispute with neither side claiming any responsibility and liability.
It is not, in any way, an admission of guilt.
Neither is it absolution.
I'd prefer it if the victim(s) had continued this until the end so that there could be an actual verdict and guilt either confirmed or denied.