I struggle with OP’s assessment here, are we really judging someone off a TV show appearance? Kevin has so many tools, and is so good at more than just throwing hard, I’ve seen him slow wheel it, two hand it, throw rockets, the kid works so darn hard and is so talented. Using your balls reps for advice is a huge thing on TV, it may have seen more obvious with him compared to others, but he was just using his available resources. And Kevin has done considerably well at the Us Open and Masters, so saying he’s only good on easy patterns or because his high rev rate is ridiculous.
Sorry if this comes off as a rant, but as someone who has crossed with Kevin often in the Midwest for years, the kid is a phenom, and extremely humble.