I agree to an extent. I am thankful to have met my loving wife through the religion. Ironically some of the qualities that we strive to find for a mate are the same qualities that caused her to leave the religion. It's good to find someone who is honest, open-minded, unassuming and for the most part, unconditional in their love and affection for their friends and family.
Most religions strive to teach the same basic set of morals. You can find good people regardless of background or religion, What they care about is a very telling factor. Do they have a substance abuse problem? Do they come from a generous family? These are all good things to research about the person.