Well I was 4 years ago when the video appeared. The reason is unlike other coaches, he never even mentioned it before in our many nasi lemak sessions in 2018. I guess that’s his character. There are many strong players brought to IM, WIM and WFM levels who like Samantha never mentioned who their coach is unless interviewed directly by Chessbase in this case.
Of course today, knowing the man better, I am not surprised if there is a well known junior under his tutelage AND few people knows about it 🙂