The Tatum thing isn't puzzling, he shooting low % from 3 for an extended period now, so against certain teams his shooting keeps him on the bench. Likewise, White and Holiday were duplicative in the Serbia game, but I'd bet we see a lot of them hounding France's mediocre backcourt in this next game.
There are lots of positives, LeBron continues to be amazing ala Tom Brady, Joel Embid actually played very well offensively (rebounding still frustrating) and seeing KD, Steph and Booker make shots late was fun. It is weirdly better that they had a close game or test, vs had the USA played and been coached as well as possible they would/should have won everything by 20+ and that would have been far less interesting and satisfying. Can we be happy about that?!