I completely agree. Since finding success in these team sports requires being able to develop systems and infrastructure from the ground up, as well as adapt to change, the lessons learned will apply and resonate throughout, not just sports. China has certainly done well in this regards when it relates to other fields such as military and technology, but the fact that team sports struggles this much collectively as a whole indicates there is still room left on the table as a society.Of course being good at football is what's wanted as the end goal. But more importantly, I think the big lesson is to find a model/template to develop a team sports infrastructure. Once you have a working model, you can use it for other team sports.
That's why China always has these "breakthroughs" and afterwards success at a mass level follows.
For me, basketball has been almost as dissapointing as soccer. Chinese basketball is comparatively much better than soccer, but has completely stagnated, and even potentially regressed. Naturally, Chinese basketball has tried to emulate American basketball, with a focus on iso ball, but Chinese basketball is mature enough now to develop a better fitting style. There seems to be a lack of evolution in the game compared to other organizations. Case in point is European basketball, whose play style is completely different. There is a much more team focus, with very little iso ball. There aren't these video game box scores in Euroleague, and this style has helped European teams and players which often have less overall athleticism, stay competitive.
The American system/society is hyper team sports focused at every level, and isn't one that China can/should emulate, however there is 0 fundamental reason China can't develop players and teams at a European caliber.