I enjoyed this series and learned a lot I didn't know.
However I think the show's creators could have learned a bit too. The show pointed out several things which became staples with comic heroes that supposedly originated with characters like superman and batman (such as skin tight costume, non hero identity, tragic origin story with parents dying etc). Things which in fact appeared in The Phantom which was published 2 years before superman. It did seem that the show was focusing on US comics but The Phantom was huge in places like UK and Australia (and did get a big film adaption a decade before Marvel started dominating the box office) so skipping a character that started so many things that became standard in comic heroes that followed was disappointing.