“Do not discontinue the good practices which the earlier people of this community had acted upon, by virtue of which there was general unity and through which the subjects prospered.”
It is tempting to come in all guns blazing and impose what you want to. It is like when a football manager is appointed at a new club and completely changes the philosophy straight away. This usually ends badly. Imam Ali says not to do this. Why stop something that is working and is keeping the people happy and united?