Why did the pagans have animal sacrifices that looked like Israel's?
Their animal sacrifices were a satanic counterfeit of the right way God had established, because Satan always sets up counterfeits. The pagans copied Israel's sacrificial system, including temple meat distribution, since Israel did the same things with its sacrifices and priests.
Les explains that when pagans set up their animal sacrifices, it was a satanic counterfeit of what God had established as the right way, because Satan always establishes a counterfeit. So when the pagans offered their animal sacrifices and then had the meat from the temple taken down to the marketplace, or maybe given to the individual who brought the sacrifice, they had really copied it from Israel, because Israel did the same thing. Israel took a sacrificial animal up to the priests, and the priests could eat of the leftover meat first. If there was more than the priests could handle, evidently it was within their power to designate it to the individual, perhaps the person who brought the sacrifice in the first place.