She knows she messed up. She can see it on Lord Vader's face. She ducks her head, and gets him on the bed she affectionately calls 'the table'. It's not designed for anyone else save him.

And yes, she's heard nothing for years save Luke Skywalker this, Luke Skywalker that. So, yes, she knows Luke can fly, but she's more worried about getting her Lord safe and secure. Besides, it'd look odd if she didn't ask, wouldn't it? As if someone standing in an Imperial officer's uniform healing Lord Vader isn't odd enough.

"He says go!" She calls up to the front as she starts getting him into place. "Don't wait for us." She calls again, still feeding healing to Lord Vader. She wants him to be okay, and that's probably going to cost her later.

She finally gets the alternate oxygen set up and takes a deep breath. The shuttle shudders and she braces herself to keep from falling on Vader. Instead, she finds a place on the floor, and takes his hand. "Mom will be very perturbed, if you decide to die." She reminds him gently. Her healing increases as she watches the gauges and the readouts. She directs her healing where the Force tells her it needs to go. "Not to mention Dad. He'll run me ragged!" She teases.