"On Alderaan and Tatooine. Find them, Palpatine will not." They needed that much, at least. The only thing worse than them meeting the fate of the other children would be if Palpatine thought them... useful. Perhaps if he'd seen more clearly, if he'd kept Palpatine farther from young Anakin...

But no, all he could do was save those two. It would have to be enough.