Captain Tagon's new mercenary charter is on file with Admiral Emm. He's indebted to the U.N.S. for timely rescue, and restoration of his derelict ship.
And that's all you really need to know.
If you want to protect your 'friends' by letting them keep their new memories, all you need to do is stay out of their lives. It's what they expect from you, now.
They are good people. Be nice to them.
They are mercenaries. We're going to employ them.