And PLEASE. Would Jon Snow from the novels ever fall for that trap, when he knew that the Nights Watch were being shady "Oh your uncle is outside Jon!!". Hence why HE (not Sam) insisted that Sam was to go off to become a Maester as he was the only man on the wall he could trust.
The writers could make up for it, if they get Jon to warg into Ghost. That would be redeeming. The series presents no correlation with the novels as to how Jon wargs with his direwolf though, sadly.