Su Yu doesn't know what is currently happening in the comments section of his livestream since he is fully concentrated on thinking of a plan on how to save Duan Yuan. Just as the black fans said, he (SY) knows fully well that he is going to explore a haunted house, and that Duan Yuan is disabled, yet he still brought Duan Yuan with him.
But, if Su Yu insisted on not bringing Duan Yuan, Han Yao and Duan Fanbai would suspect him that he is hiding something from them. To which Su Yu can't let happen since he is happy with his current job and plans to cooperate with Han Yao and Duan Fanbai for a long time. Thus, he can only bring Duan Yuan with him. Fortunately, the other is also very sensible, and is even thoughtful. Duan Yuan is blind yet he still brought with him a flashlight. If it is not Su Yu who will use it, then who else will?