Yes .... but I didn't realize that Wilson outed himself in the article
I must have been having a brain dead moment (I've had a few) and didn't pick up your point
It's a supposition that Wilson would have told Kristof about Plame being in the CIA. But as we've often remarked, it would have certainly been in character.
Also, lest we forget, Wilson was asking Kristof to call the President of the United States a liar--and a liar who lied to get us into an unneccesary war.
That is, Wilson is was asking Kristof to call Bush the worst kind of traitor. (Granted this is the NYT, and they are predisposed that way, but still it's a serious charge.)
So I think it is almost a certainty that Wilson would have trotted out everything in his (limited) arsenel to convicne Kristof he was legit. And one of the things he would have told him was that his wife was an expert in the field, working as she does at the CIA on WMD.