He wasn't a proven terrorist enabler. His mind-controlled self was. He's not mind controlled anymore and everyone knew it by that point. To some this is just semantics and that's fine, I get the argument that they still didn't know the real him well, but there's a difference between arguing its semantic nature and pretending its not a thing at all that he was mind-controlled and the things he did as Mr. Oz was not the true Jor-El.