See

This is just a TV show not a factual future style documentary, its just entertainment people. You really think transformers, light sabres and those cars in too fast too furious all work like that in real life? Yes, a lot of this doesn't make sense and is kind of annoying in parts, and yes, I agree the emphasis on their blindness should have been less hollywood and more realistic like Birdbox. If this would have been the case i would have given it 9 or even 10, but i only seen 2 episodes so far.

Photography is amazing, so are the detailed costumes and the performances seem good even though this is a stereotypical Jason M role, but you know what it suits him, just like Khal Drogo character.

Just so to make things clear, blind doesn't normally mean 100 % blackness. it often is a case of people seeing dark shapes and silhouettes instead of complete darkness, this could explain some if it, but just enjoy it everybody. Avengers are not real either just so you all know.