I have to disagree. My complaints are not solely from a historical perspective, though I also have that in mind. Out of all the civs released so far only the Maya have actually been fun to play. The entire pass has felt phoned in to me.
I personally feel like they've been pretty creative with the new Civs. I've also found Bull Moose Teddy - with his appeal and National Park based strategies; Ethopia - with a faith-based trade and improvement play; and Babylon's eureka chaining science a lot of fun and different play. Celts are pretty creative as well, though they haven't done as much for me. Byzantium and Gran Colombia have been more straightforward/meh for me, but I'm also less of a domination player in Civ. Gathering Storm had the Maori as an extremely creative design, but outside of them it's a similar mix of more creative and less creative. And both are leagues better than Rise and Fall's "every casus belli is a UA" designs.