Sauron didn't destroy Numenor. That was an act of God. All indications are that it came as quite a shock to the Dark Lord.
Hmmm, well, an act of the Valar anyway. But Sauron was the one who lead the Numenoreans to defy the will of the Valar and attempt to sail into the West...
Hmmmmmmmm.....
On second thought, that might be a hard one to make stick. The raids on Gondor should still work though. Oh, and Galadriel can throw in a charge for the destruction of Eregion, no?