No idea but it is annoying for anyone that knows anything about table tennis. It sounds like it's the first time he's watched it. Describing Calderano's serve as the 'high ball wiggle the bat serve'...really not adding anything.
ITTF English commentary job interview:
Interviewer: We are looking for an English speaking commentator for the Tokyo Olympics and would like a better understanding about your background.
Candidate: Thank you for giving me the opportunity to meet with you.
Interviewer: Have you played table tennis at any level?
Candidate: No.
Interviewer: Not even recreationally with your friends?
Candidate: No.
Interviewer: Have you ever seen or watched table tennis being played at any level?
Candidate: No.
Interviewer: So how do you think you are qualified for this position?
Candidate: While I may not have any experience with the sport, I have done extensive research on it. For example, I know the sport was invented by the Greeks and was part of the original Olympic games. The very first Olympic Gold medal was won by Zeus in a close match against Poseidon about 20,000 years ago. The first 3 Para-Olympic gold medals were won by Hephaestus.
The game remained relatively unchanged until 1925 when someone found that using a cleaning sponge on a bat will enhance defensive play. While this meant dirtier houses for the players, they quickly adapted to playing with sponge. Then shortly after World War II, quite accidently, someone discovered that using bicycle tire glue on the sponge will make the ball stick better. Alas, there was an unforeseen side effect by using this glue. The ball sticking to the sponge was causing a lot of mental anguish to players. So, in 1984 the ITTF had no choice but step in and ban this glue, restoring everyone's health. The game has continued relatively unchanged since.
Of course, the game wasn't played in Europe during the bubonic plague and European players have struggled since then to catch up to the Asian (mostly Vietnamese) players since then.
Interviewer: You have done a lot of research. Since this position is to provide English commentary, how do you spell table tennis?
Candidate: T-A-B-L D-E-N-I-S.
Interviewer: Great job, you are hired! When can you start?