The Vatican astronomer goes on to say that perhaps if there are intelligent beings in another solar system that they don’t need salvation, they don’t need the atonement of Christ, they may have remained in full friendship with the Creator.
This is the most interesting theological speculation. If there is intelligent life made in God’s image somewhere else in the universe, have they fallen into sin? Or was this a civilization or culture in which the Fall did not occur? Adam did not take the apple or Eve did not take the fruit of the tree. Is it possible that there could be a race of intelligent beings that has not fallen into sin? Well, it seems to me that that is possible. C. S. Lewis imagined such a thing in his science fiction trilogies. It is possible, I think. Adam did not have to sin; Eve didn’t have to sin. Neither did their descendants. So it is possible there could be such a population. In that case, they wouldn’t have fallen into sin and wouldn’t need redemption.
He's conceding, as a live possibility (i.e. feasible), that you could have actual planets where every member of that intelligent species is unfallen. So that cuts the nerve of the freewill defense insofar as that's predicated on God's inability to create sinless rational agents without infringing on their libertarian freedom. And not just isolated individuals, but in this case, everyone in that particular class of agents.
By Craig's admission, a freewill theist can no longer say the world contains moral evil because God was unable to create a world in which all free agents do right.