That's interesting. For context, my fiancee was a wiccan years ago and now identifies as a pagan. I regard ours a pagan household. Although I'm not religious nor especially spiritual, I am interested in science and natural history, and celebrating astronomically significant times, equinoxes and solstices, and respecting nature makes sense to me, so it all works out.
Now I recognise the theories of the shared origins and meanings of ancient pantheistic traditions, and I see how they've been used by modern pagans, and I'm fine with that. But, beyond vague theories, I haven't been directed to any actual evidence that there was a surviving 'pagan' religion through the middle ages in Europe. There were of course magical treatises which seemed much of their time, and contained much Christian mysticism, but little that could be termed a religion. Main stream medicine of the time was based on humours, the four classical elements and astrology, and seems like a magic system to modern eyes, but it was a part of the Christian culture of the time. Those practices described as witchcraft at the time seem to be based on the paranoid fears of Christians. Of course, there were people who carried folk knowledge through the generations, about herbs, midwifery, even charms against spirit, but none of it could be inarguably classed as religion. So I've always been doubtful that any actual religious practices were passed by actual worshippers from ancient times, much less that any horned god/earth goddess cult has survived not only monotheism but also the pantheons of previous peoples, which were not themselves very similar to paganism as it stands today.