Well, yes. The Chinese Room claims that there is a gulf between being able to pass a Chinese Turing test versus being able to actually understand Chinese and have intentionality.
Unlike intentionality, however, emotions aren't just for show: I act differently, depending on my emotions. For example, when I'm angry, I sometimes act irrationally. My actions, therefore, depend on my emotions. To program emotions (anger), and their effects (irrationality) is difficult (how do you program irrationality?).
For example, the robot your GP linked to is different from other robots because it has "obvious emotional expressions". These emotional expressions probably don't translate in to different behaviors; when the robot has an angry expression, it's not going to hit the child it's playing with, it's just going to display an angry face.
So, yes, there is a difference between ersatz emotions and real emotions. That's why the Chinese Room argument isn't quite a parallel. For the Chinese Room, it's hard to tell whether or not the computer has intentionality just by speaking to it; for an emotional robot which acts, it's easy to tell whether or not it has actual emotions.