[William Cloud Hicklin]

I think that's probably right. Sauron feared Galadriel perhaps more than any other foe, after all. More to the point, Sauron's original war strategy called for a much more substantial assault on Lorien; only after Aragorn revealed himself in the Palantir did Sauron redirect forces to the southern front* instead, being now convinced that the Ring was bound for Minas Tirith.

* The Chronology isn't specific about which forces, but it would seem likely that it would be the army that issued from the Morannon and in the event crossed at Cair Andros into Anorien. Had that army been joined to that of Dol Guldur, would Lorien have held? Who knows? In the event, the Ch. tells us, the army from DG was repulsed and retreated southward over Limlight, to be destroyed by the Ents in the Wold.