Somebody is confused. There is a Stonehenge Aotearoa, which is a replica built in New Zealand. The ancient Stonehenge was almost certainly built by ancient Celts and the stones were taken from a few hundred miles away in Wales, which itself is an impressive feat.
I think the “not from England” part is probably because of the recent news that the alter stone is from Scotland. like you say, a lot of them are from Wales, it’s just the alter stone in the center that’s from far away. Not Maori though.
alter stone
I think I remember that spell from D&D.
I hear the altAr stone was also from Scotland.