To be fair, maybe the error is in the article's author's understanding, not in the film itself, which is not even completed.
If Disney is true to form, the book will remain better. I hardly trust Disney to properly express theology as understood by C.S. Lewis. Everything biblical teaches us to consider our citizenship as above, and not to cling to this fleeting, failing world we hold so dearly by nature. As others have said, Disney is in this for the money. They certainly do not have the innocent suffering and death of Christ for the sin of the world at heart. If any spiritual good comes of this movie it will be by accident. Either way, history will run its course. Christ and His Church will prevail.