Nabateans were ruling over humans before Nemesis, Rhea's biggest mistake is to not have done the same after the war.
Are you the same anon who sent me those Naga asks?
I won’t say it’s a mistake, but rather a master play against the Agarthians who were banking on several rounds of “humans vs lizards” to get rid of lizards.
Because, from what I read, the Church/Rhea never ruled over humans, she helped her human BFF to create an Empire and to rule over the world. Wilhelm was the Emperor ruling over humans (or at least his descendants).
Now, was Seiros manipulating Wilhelm’s strings or not is another story, and sadly, from what the dev interview said, we will never know it because even the devs didn’t think a lot about Fodlan lore :’(
Saint Seiros revised history to hide the real motivations behind her crusade against Nemesis and to bring some sort of peace to the continent (her “nope the dudes weren’t shit they were on our side and Nemesis became corrupted so if you followed him you’re not shit too, just misguided”). She also tried to hide the fact that lizards still existed and what was the real source of crests.
With Wilhelm (and his line) being Emperors, random Agarthians couldn’t pull a Nemesis’ and point at him saying he is a dirty subhuman so bona fide humans should revolt and get rid of them.
They just had to plan something, even if it took several centuries, to get rid of lizards or reveal the truth and have people ready to believe it and start a continental war over this truth.
Now that I think about it, Rhea unintentionally thwarted the Agarthian agenda, delaying it by 1000 years.
just like that time where Dimitri rolled over Uncle Arry accidently thinking he was a mook