I am far less concerned about the absence of technology, and more troubled by the lack of magic. I find it hard to believe that an ancient society of immortal pagans wouldn’t have a single sorceress among their ranks. I keep hoping that maybe there is a small coven of magic wielding priestesses tucked away somewhere on the island.
Personally I think that this hypothetical coven could be a great way to reintroduce Circe. Have her be an Amazonian Priestess devoted to Hecate who is angry at Diana and Hippolyta for bringing Hera’s wrath upon her sisters. In the hands of the right writer, I think it could make for some juicy story telling.
For right now I am just happy that the Amazons are still immortal and seemingly superhuman. I would have been so disappointed if they had all been downgraded to regular baseline humans.