Interesting ... can't speak for Buddhism, but I wonder if folk traditions 'mature' towards a central point? Is that because of an emerging patriarchy, or because of natural hierarchy?
Buddhism is a collection of teachings and practices revolving around the problem of suffering, and of course various folk traditions in its own right, wherever it took root. It explicitly does not contain a creation account of universal origins, rather, one of the tenets in early Buddhism which were carried on into later schools as far as I know, is that universal origins are unfathomable. Philosophically, Buddhism is concerned with understanding the origins not of the universe, but of suffering, and one of the central teachings regarding this subject ("Dependent Origination") can be summed up colloquially "if you start out from ignorance, you end up suffering".
Buddhism nowadays is of course thoroughly patriarchal and hierarchical, in spite of its origins among the homeless, religiously non-aligned and experimental drop-outs of ancient Indian society.
I've always struggle with polytheism because you can't have two absolutes, two infinities, etc., without some over-arching element?
Folk religion considered in the way of the Greek philosophical tradition?
Just wonderin' ...
I tend to see evolution more than a singular striving towards a distant goal (an hypothesis, like 'progress', that was put forward by privileged white men) as the play of 'interdependent duties or causalities' (a theory posed by Lynn Margulis, pioneering evolutionary theorist, co-developer of the Gaia Hypothesis)
Folk traditions tend to be concerned with mundane stuff like staying in touch with the ancestors, getting help with life's challenges like finding a partner, feeding and sheltering a family, curing illnesses, and with celebrating a good party now and then, over the year and during one's lifetime. If they are centered on anything, then it is "the family", a collective, which, while a focus, is hardly a "central point" (judging by my own family).
In terms of ancient Greece, not the philosophers or the wandering ascetics, but rather the homemakers, buying properly ritually butchered meat, spilling libations to the local gods and spirits, visiting the local Asclepeion for help with a troublesome knee, joinging the annual procession and subsequent party, perhaps getting a little lead tablet with a spell or curse on it to boos business fortunes...