I can't take this show seriously at all based upon the (admittedly nice) trailer.
I mean, you have a post-apocalyptic society of entirely blind people. Not only do they somehow manage to survive, they:
1. Have physical adornment, including clothing with colors and facepaint.
2. Ride horses.
3. Go into battle, not just with melee weapons, but with bows and arrows.
4. Climb mountains
5. Sail ships.
Unless there is some ESP-like power they have access to, all of this is patently ridiculous.
Oh well, never gonna have Apple TV+ anyway.