that was well above what was needed to qualify, and he pulled offers from kids who failed to meet it, kids who went ahead and signed at other schools and played immediately. That includes one kid who became a 4 year starter at his ultimate school, then went on to sign a 3-year NFL contract.
I can't speak to what Kalani does.
As for the preferred walk-ons at BYU, they in fact do have to compete for a place at BYU with the general pool of freshman applicants. I know you won't like it, but that is how one well-known Utah County family became Utes - their kid couldn't qualify to walk-on at BYU but did at Utah.