In the introduction of the Declaration of Independence, our Founders felt a need to elaborate.  The significance is how the king never felt burdened to explain himself.  While his royal propaganda machine reminded everyone that they lived within his kingdom as the owners of nothing, the king also reminded them how he owned all property and things.  So, there wasn't much need for elaboration.  By legal precedence, if you wanted to start your own kingdom, you needed to either crown yourself or someone else as a king and go to war with him challenging his sovereign right as the ruler.
In contrast, our Founders abolished the legal precedence involved in splitting from a king and his kingdom by  utilizing the scientific process of natural law.