The main character suffers from DID. From trauma that happened when he was little. Maybe you didn't watch the whole thing, that seems pretty "human drama"-ey to me.
That's not human drama. That's a sensationalized depiction of a really rare disorder that 99% of the audience has no experience with and cannot relate directly to.
Of course that's human drama, the entire show is drama. Even the "spy thriller" subplot is motivated by death of Whiterose's partner and the need to put the world back the way it was.