A thirty-to-forty foot drop isn't that big a deal by the standards of Force users. Very easily survivable with only a minimum of effort. A basic exercise. Just exert a touch of will, slow the fall, reinforce the body, land gracefully. Simple.
However, it's considerably harder when one is naked, with their wrists are tied to their ankles, head pulled back with a gag stuffed in their mouth and still aching all over from their master's tender attentions in the leadup to getting tossed ungently out of the hovering ship.
Salacis manages it, because she's awesome and very powerful, but it is perhaps closer than she would like to admit. As she hears the twin clunks of her tonfa hitting the ground nearby, she manages to wriggle over onto her back to glare cutely balefully at Sidious standing in the airlock.