She's just saying that; she doesn't mean it.
She wants more debates like I want more cheese in a can. (All nasty and processed).
Seriously, is there anything she could say that you wouldn't attack her over? If she dropped out of the race today and endorsed Sanders, would you respond "She's only doing it so that she'll have leverage in his administration."?
Maybe if she had gotten on the bandwagon when Sanders and O'Malley did, and not hiding until the "rules" were established then I wouldn't say she's just saying it.