I guess it worked for him.
As a matter of faith is he required to believe the religious text of your choosing?
When he has come forward and said it was the/his Mormon faith that got him clean and sober and turned his life around who are we to question? I could care less if you worship a Pepsi can as long as you’re a decent, respectable, productive citizen.
Who are you to judge when we have a guaranteed freedom of religion?