Ripley was in the middle of questioning the Marzu when the Mountain-man, formerly known as Ming Jie, opened his eyes. Aura's had no effect on anyone, not to mention that the Mountain-man was sitting far enough away from everyone that any abrupt movements on his part would not cause any other guests harm. That did not mean that others would not sense any harmless aura fluctuations, which is pretty much everyone in the Inn felt it when Ming Jie woke up.
Admittedly, there was a very brief period wherein mortal guests had taken up climbing the Mountain-man unassisted by tools or techniques as a method of training. But seeing as how that might be interpreted as harassment and invasion of personal space, the Inn had quickly put an end to that. At most, they could only allow guests to pose and take pictures in front of it.