Want an easy way to see how well France played? Check out Nando de Colo's stat line.
China is not a good team, individually or collectively. In particular, they lack backcourt players capable of creating, either for themselves or for their teammates. On the other hand, China runs a lot and is tall. Rudy Gobert doesn't often meet teams with two players his size and several others pretty close.
Team France needed a good game. Not to win; the difference in quality between the two teams was great enough that the outcome was pretty much a foregone conclusion.