I'm sure there's quite a lot that we've not heard Cain mention. You expect Cain will mention she left civvies behind?
Where do you think the ship Laird came from has gone?
As far as I am concerned it sounds completely plausible considering everything we know about the rest of Season 2 (which is an aweful lot more than that). Really there's not that much in that synopsis.
We also know that Pegasus is around for the rest of Season 2. I would assume Starbuck gets back after the initial conflict between the vipers. Something has to put a stop to the conflict pretty quickly.