Note: I do not necessarily take issue with +Sanborn, or anyone else for that matter, holding a "traditional" view of BOD/BOB.
I do take issue with +Sanborn teaching that non-Catholics can be saved (heresy), and imposing his opinion of BOD on the laity as the infallible teaching of the Church. I'm no theologian, but I'd bet teaching something that is not the infallible teaching of the Church as Her infallible teaching is, at least, quasi-heretical