All of the top programs are consistently adding more and more talent regardless of position. Rarely do they say "Nah,,,we're good."
It's "Great we can add another 5 star kid, let's take a look." If they happen to offend the other 4 and 5 star talents on the roster no skin off their nose cause they'll just replace them with another, and another, and another...and so on.
BYU isn't to that point yet, but imagine if they could get there.
If a high level talent like Dart shows interest, you bring him in to see if he's a fit.