USA team lifters are competing purely on numbers. It simply doesn't matter how they look as long as they make weight in the lower classes and achieve the lifts. Elite Crossfitters have that physique due to being as light as possible for a given level of strength. It has zero-utility to be the size of Klokov in the Crossfit Games, as he would come in last in all of the metcon stuff. He would get 1st in the 1RM competition, but may not even place in the high-rep Oly CF routines.
Elite Crossfitters are basically lean Olympic lifters. The only contrast would be all of the metcon/cardio (thrusters, high-rep Oly, swimming). The only significant contrast is that it's basically a low-rep Oly program (Team USA) vs. a high-rep Oly program (elite CF).
Rich Froning has stated he does ZERO "non-compound" lifts. The same can be said for any of the elite at the Games; Smith, Fraser, etc. Same on the women's side.
Camille Leblanc Bazinet (last year's champ) made the Canadian Oly team. Rich Froning's oly max would have qualified him for the US team for every year that he won the Games. Same for Ben Smith, the Canadian ("fear the beard" guy).
Baron is proof that isolation can work to get ripped and strong, but he'll probably admit that it's mostly diet. Lifting heavy shit makes you strong. Dieting makes you cut.
Crossfit is not my bag as they simply train too much and it's abstract to me (not efficient as a lifestyle), but the results are nothing short of amazing. Stacie Tovar isn't even top-ten and she's an animal. Look at the physique that is possible with diet and compounds (only).
Most of the top-ten competitors have outstanding physiques and elite totals.