For a number of reasons actually. Synods work in many ways like an advisory body where a number of people, in this case-bishops, discuss local issues of interest to the faith and the institution. It is an opportunity for bishops across the globe to work together easier. Further, globally we are all unique with cultural differences and mores, customs and rituals meaningful to one group of people that do not transfer well globally.
Lastly, synods have been exclusively clerical. Without the lived experiences of the People of God known to the bishops, how is it feasible to lead us? They don’t relate naturally to us or relate to the kinds of issues we struggle with. To make our point (perhaps dramatically), we called our movement the Peoples Synod. Currently, and for the next couple years, our focus is to serve the People of God to engage in sharing educational opportunities that help us all to better understand our Church, our faith, and ourselves and put that learning into action. We will learn with you.