Your general arguements about our critique do have a point, but you misunderstood arguments, and established presnted results as "arrogance and ego"
You dont have to be zhang jike to understand table tennis, I have many players in my club that I beat them easily, and in many cases during matches (mine or others), their understanding of the game is much much better than mine.
This does not mean I will not listen to their constructive, I repeat, constructive criticism. So when a guy is clearly ignorant about how good saive was, and throws inaccurate information and gets to conclusions all by himself, I cannot respect his opinion and I will make sure he gets his facts straight next time. Call me arrogant, call me egoistic or self centered, but I like to speak/make dialogue with proven facts and numbers, not my personal preferences or what I ASSUME (assuming ! not knowing) is the truth
In order to have a valid/solid opinion, you need to have valid knowledge first.
Lastly , let me ask you a question, you are in zhang jike's marketing team. What do you advise him
1. make 50 videos/tutorials about FH/BH and table tennis tactics
2. make 2-3 videos where you insinuate that some players in the CNT are crap. without blatantly naming anyone, so you can keep the interest/drama going. Even 2-3 members of this forum easily fell right into the trap. You can see them in the two pages of this thread