One of the more notable part for me starts at the 32 minute mark of the video. It talks about AGM proposition 16 where JTTA proposed that the service rule be changed. The full text can be found on page 108 of this document:
https://documents.ittf.sport/sites/default/files/public/2020-08/2020_AGM_documents_1.pdf and I have copied the relevant portions below:
Proposition 16 proposed by the Japan Table Tennis Association Effective 1st January 2021 (3/4 majority required):
"To amend 2.6.2:The server shall then project the ball near vertically upwards, without imparting spin, so that it rises at least
above their head height(instead of at least 16cm) after leaving the palm of the free hand and then falls without touching anything before being struck.”
”Rationale:To make clearer the point of decision on fault services. But this rule will not apply for playersof elderly person or players of age below 9 years of age, different rule shall be applied."
JTTA apparently forgot that some of the best servers on their team (e.g. Ito, Hayata, Hirano) have very effective shovel serves, and while their shovel serves generally comply with the 16cm rule, they do not consistently toss the ball above their head height when they do these shovel serves. It's like JTTA is trying to undermine their own team and get their own players faulted on their serves. Haha. I'm guessing that the proposed rule change by the JTTA might have been filed with the ITTF back when Japanese players were known for their high-toss serves such as when Fukuhara and Ishikawa were leading the team but it seems that majority of the team has shifted to mostly shovel serves. (Even Ishikawa is serving more shovel serves now).
Anyway, if you start watching from the 32 minute mark, it appears JTTA, realizing the potential danger of the passing of this new rule, sent a note to ITTF begging that if the rule change gets passed, that it apply the service rule change only in 2022, which is after the 2020+1 Olympics. If the service rule does get passed and ITTF is firm that it should be effective next year, a lot of players are going to have to adjust their serves just before the Olympics.