Not necessarily, no. It’s just that a big company won’t take the publicity hit that would come from reneging on the pinky promise that they’d refund the deposit. Even where it is contractually provided for, the contract could be forceably renegotiated in bankruptcy.
I don't imagine "going out of business" is a preferred outcome for a billion dollar business to avoid refunding presales for a failed product. But your right, unsecured creditors are screwed in a bankruptcy.
