I don't think there is any doubt about that and that the area around that "temple" is special in some manner.
It should be noted that the Phoenix has historical connection to Horus as well so given that the temple has two large statues of Phoenix and the writing has some connection to ancient Egyptian reference to Horus I concluded that it has some relation to the Old Kingdom. I could find nothing else so just focused on something else.
Also Podesta has in the past referenced 14 pieces which, again, reference to Egyptian mythos. I think the rituals have a very strong focus on the ancient rituals of the Egyptians which is interesting considering some believe they had connection with ancient aliens.