First of all, the revised rules have changed before and after the selection of players, which has bound our China team to some extent. Many excellent players may not get the chance to play, but there are some advantages for the Japanese team, so there is a great chance to avoid some top players in our country. However, the strength of our players in China is still good, and there is no substantial threat to us. As for the help to the Japanese team, it is second only to the chance to enter the finals.
There are also technical limitations. We know that ITTF had some restrictions on serving in the last competition, especially for China players, but our excellent national players quickly overcame these restrictions. The new rules of chopping the ball this time are useless, and it is estimated that it will be the same as last time. But it is of great help to the Japanese team that chopped the ball and killed the ball short, and has little influence on us. After all, all our skills are comprehensive.
The result of T2 Diamond League is also imaginable. Japan's top stars, Zhang Benzhi and Ito Mikei, also went out one after another, and did not achieve good results as they imagined.
So to sum up, this rule change didn't really help the Japanese team. Besides, the skills are still not in place. If you want to win medals or practice more, don't look for articles about these rules.