It's a tricky balance. Yes, we want to stick to doctrine and not just affirm someone's ideas simply to make this person feel better. But you don't want to shut this person down. In my view, this comes down to "whatever" doctrine that isn't that pertinent as obviously assuming one can always repent later isn't the best course of action. In my view, if a person is nitpicking about stuff like this, there isn't much I can say or not say to really affect his testimony one way or the other and therefore I would refuse to accept responsibility for this person's future interaction with the gospel. I guess... ward leadership allowing... I would make it clear we are all just speculating short of someone providing actual quotes of doctrine.