A dynamic understanding of phenomena such as regression-adulthood, freedom-fundamentalism, collectivism-individualism, and a model that makes it possible to distinguish the different expressions is needed. In other words, there are at least two kinds of regression two kinds of individualism, two kinds of responsibility, etc., and models must be able to distinguish them.
It also needs a dynamic understanding to explain how a spirituality can "go backwards." Fowler has been criticized for this. According to him, this is not possible (ref).