Couldn't be too much of a secret if there's a story about it...
And your thread title is a tad disingenuous, don't you think?
Rove's luncheon speech did not appear on the retreat's official agenda because Romney's campaign didn't host it. Instead, the event was hosted by Solamere Capital, a private equity firm founded by Tagg Romney, the candidate's eldest son, and Spencer Zwick, the Romney campaign's chief fundraiser who is often described as Romney's "sixth son."
So, although I am certain that many, if not all, of those who sat to hear Rove speak also attended the Romney campaign retreat, Rove's speech was a seperate event.