That means Hayata has found chinks in the CNT armour and is able to get through and nip them in the bud.
10 of them in 2019.
Beating chinese 2nd team, in the same age group, is important, these are the ones coming down the pike to replace the aging ones on their way out. LSW, DN etc won’ be around come 2024, but Hayata and those she beat will still be.
I don't think it’s fair to expect someone emerging to be able immediately to defeat first rank Chinese woman consistently who has been playing, and indeed dominated the world, for many yrs already.
What’s more there isn’t a single national association that has the structure, depth and immensity of the Chinese support team/system. For Hayata, there’s only her coach, a training partner. There is no LGL, Li, Qian, ML, GY as coaches to share their experience, nor first rate players in the A-team ( FYL, WYD, MZ, WY amongst others) to act as sparring partners. She is on her own. To achieve that kind of results in 2019 is quite remarkable.
btw..Can you name another non-chinese that has 10 wins against chinese players and 5 international Tournament (Challenge or others) championships in ONE year ?