Do you believe Catholics are pope-, priest-, or saint-centered, and therefore not Christian? Just wondering.
Speaking for myself, I think it’s OK for denominations to disagree on the mode by which to access Christ. Catholics want the relationship mediated by a church bureaucracy. I don’t go for that, but since their ultimate concern is Christ, they’re Christians.
As Rod said in the article, though, Mormons themselves believe other Christians are apostate — having rejected the true faith. Thus, they define the true faith differently and are therefore not of the same religion as other Christians.
If you believe that then you are quite ignorant of Catholicism.