If the audience wanted to watch Sungjae Im, that's who the producers would focus on. If he's in the lead Sunday afternoon, he'll be on TV. Instead, they think--probably correctly-- that the audience wants to see a come-back story. Since Tiger has always been a draw, guess who they're going to focus on.
I'm not defending the TV producers. It's just that's how it works.
Consider any Sunday afternoon golf presentation. They'll only follow the final few groups since those players are likely the only ones in contention. the only time they show the rest of the field is if someone makes either an amazingly great shot or putt OR someone makes an historic blunder. Otherwise, we never see the dozens of other players.
Regarding his personal history, what do you want to hear? A rehashing of his infidelities and divorce? Hasn't that been covered extensively? I know far too much about his personal life already, frankly. I'm really only interested in his golf. I've never looked to athletes for moral inspiration or direction. Besides, the commentators have been talking about his car crash and resulting injuries and recovery. After all, those issues contribute to the come-back storyline.