1. No strict experiment was conducted to confirm this proposed two-stage process, so that we can have many versions of stories to assume the model other than that one in the paper. The model lacks empirical evidence. Note that model fit is never ever a piece of evidence based one-stage data they used!
2. A person may not really exhibit his or her 'extremeness' but too less number of categories enforced him or her to choose one out of them.
3. Indulging ourselves in the same fantasy, unfolding model can be easily applied to the same story.