One of the main reasons that people watch films is to enjoy an emotional rollercoaster ride with no personal consequences. It’s a safe place to experience laughter, fear, sorrow, revulsion, delight… all in a fun emotional ride lasting roughly 100 minutes. If a screenplay is devoid of emotion, the film is seldom worth watching.
Screenwriters deal in emotion. To them it is a currency that must be exploited, and anyone that can contribute to this aspect of their craft is worth listening to. John Koenig is such a person.