Yes, the degrees of implicitness (of desire) have come to be a many steps removed. Now ... I'll make a separate post on the difference between desire and intention later.
EXPLICIT: I believe in what the Church teaches and want to be baptized.
IMPLICIT 1: I believe in what the Church teaches and I want to become a Catholic (implicit that I want to be baptized).
IMPLICIT 2: I believe in what the Church teaches and I want do do whatever God wants me to do (implicit that I want to become a Catholic which in turn is implicit that I want to be baptized).
THESE FIRST TWO involve explicit faith with an implicit desire to be baptized. In the next level, we're moving onto implicit faith. While some of the scholastic theologians (e.g. St. Alphonsus) speak of an implicit desire for Baptism, none of them support the notion of implicit faith. When the BoDers quote people like St. Alphonsus on implicit BoD, his quotes actually apply to #1 and #2 above, but they pretend that they support the scenarios below (implicit faith)
IMPLICIT 3: I want to believe in whatever God teaches (therefore implicitly believe what the Church teaches) and I want to do whatever God wants me to do (pointing back up to #2)
IMPLICIT 4: I'm a nice guy trying to do my best, and that means that if I came to be persuaded of something as the truth, then I WOULD believe it, and I WOULD believe in the teachings of the Church and I WOULD do whatever God wants me to do (right up to Baptism).
So many BoDers have slid into Scenario #4, the salvation of the nice guy. Really, since he's a nice guy, then he WOULD believe and do whatever he were persuaded of to be true and good.