the definition of Paganism is always confusing.
if some bedouin or farmers say their Muslims, but give gift/sacrifice/respect to sacred well, sacred tomb, or sacred mountain, or Hidden Imam, is it really Paganism or just Folk Superstition ? Nejd Bedouin and Qarmatian would certainly think of themselves as Muslims.
another difficult boundary is 'polytheistic'. late-Roman religion is not always polytheistic, worship of APollo, Isis, or Sol Invictus is very close to 'normal' monotheistic worship. if they survive would we consider them 'monotheistic' like Yezidiz or Zoroastrian ?
some problem appear with boundary between Religious Reformer or Cults, Qarmatians is no more weird than Joseph Smith Mormons or Munster Anabaptists, relying on enemy accusation of 'polytheism' might not be good standard.
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if Afghanistan considered MENA, then pre-Nuristani people seems good candidate for 'True Polytheism'.