I don't know why, but I kinda feel that some people underestimate SJ ability to talk. I watched hyukjae and shindong gave presentation at SDF2020, and I think not everyone can do that. The ability to talk, to engage, and to continue whatever happen during the talk, it's not easy

I myself still shaking when I do my presentation in front of 20 people, I don't know what will happen if I were to talk in a forum like SDF2020

Their experiences as MC and radio DJ have "train" them to talk and to engage smoothly with public. Years of experiences working in broadcasting shows surely help them to stay in the game.