As a KWhit disciple, Jay Hill is probably running similar schemes and philosophies which is where Kalani had his success. Jay Hill can tell Kalani what to do just like KWhit did and BYU can keep whatever benefits Kalani is currently providing (recruiting, dance parties, etc). At minimum, Kalani has some experience even if he hasn't been great on his own.
Definitely wouldn't be my first choice but we could probably do worse.