They should go and specify what "human emotions" is supposed to mean. Ginti, Nona, heck, virtually everyone beside Decim seems to have those emotions but in reality he's the only one who officially has them? So what? Compassion is what counts as a human emotion? Angst, anger, sorrow, jealousy don't qualify? Reaaally tricky situation the writers are creating for themselves.
I do like exposure to a show's characters, I really do. But next week I wouldn't mind seeing a new pair of souls being judged (which was heavily implied by the episode's anyway fortunately).