Well, the JNT (Mika Baba) has filed a formal
complaint to ITTF and asked that the hawk-eye system be installed for Tokyo 2020.
When interviewed, Hayata was adamant that she did not serve the ball into the net, neither did the trajectory change and believes that even the Chinese players do not think so either because they did not raise their hands at the first instance. (赛后，早田希娜委屈的接受日本媒体的采访时抱怨道：“我发球的时候，明明看到球没有触到网口的白线，球飞行轨迹没有改变，而且中国选手也没有第一时间示意擦网，显然连她们都不认为这是个擦网球。”)
Concurring, Ito further chimed in that the fault definitely lies with the main umpire and nobody believes that it was a let serve. However, they had to let things go because it was pointless to engage in a debate with the umpire. If they had been in the lead for game 5 (i.e. 10-9), things would have been very different. In the end, she blames it on luck, or specifically that luck was not on their side but the Chinese's (另外一位日本选手伊藤美诚也暗示中国队运气好：“这绝对是裁判的误判，所有人都认为这不是擦网球。只可惜我们争辩没有用，如果是我们10-9领先，局势就完全不一样了。中国队获胜是运气好，今天我们没有运气！”).
I think filing a complaint is definitely fair but there is one point which IMO is pretty uncalled for. In the article, one of the points of appeal raised concerns the ethnicity of the umpire. The JNT believes that the Malaysian umpire sided with the CNT because she is ethnically Chinese and owing to her ability to speak Mandarin as well. (日本乒协也已经向国际乒联递交了抗议书，质疑来自马来西亚具有中国血统会说中文的女主裁的公正性，并且呼吁明年奥运会乒乓球比赛引进鹰眼系统.) That is basically essentialism and frankly a little racist.
