Actually, my guess is Team Obama doesn't want a lib screwing up its "War on Women" narrative. I believe part of the reason the Rush Limbaugh story went away was the conservative cries of hypocrisy (Bill Maher, Keith Olbermann, et. al) were sticking. We now know this "War on Women" strategy is priority one for both the Obama re-election bid and the effort to recall Scott Walker.
Dems clearly have internal numbers that have convinced them this strategy is a winner. What that probably means, for now, is conservative women are off limits. Rosen apparently didn't get the memo.