It's true! At the beginning of this episode he shows all his knives. Then we see morimoto's knives 
https://www.ming.com/simply-ming/episodes/season-11/1105-morimoto-and-knives.htm
It's not all he uses, and I wouldn't say that it's appropriate as your main all purpose chefs knife. Your main knife is used the most and needs to be maintained the most. As a professional, what are you going to do with a ceramic chefs knife when it needs sharpening or repair? Send it out for sharpening and get it back a week later? In the meantime, you're using...
https://www.ming.com/simply-ming/episodes/season-11/1105-morimoto-and-knives.htm
It's not all he uses, and I wouldn't say that it's appropriate as your main all purpose chefs knife. Your main knife is used the most and needs to be maintained the most. As a professional, what are you going to do with a ceramic chefs knife when it needs sharpening or repair? Send it out for sharpening and get it back a week later? In the meantime, you're using...
