Well it is a description. That means it is a phrase where you would need to separate to get the description. It is not an original name. When someone says Warsangeli, it is not a name but a description.
The description of those who "walk on sweet flowers" is backed up by historical observations of the clan through the records I have posted above. Here is another one from The Encyclopedia on Universal Geography stating the theory that the entire name for "Myrrh" is derived from the people most associated with it.
The roots of the name + historical association of the clan with sweet smelling hopefully settles the confusion.