Sure, get me a Sigma FP and I'll shoot a comparison.
The thing is, we're back at the my number is bigger than your number game, and it's bullshit.
The only thing that matters is what the image looks like.
I don't know of any cinematographer who has refused to shoot with an Alexa because the Res was too low. It's still the camera that is used as a reference.
Who cares if the BMD 12K isn't the highest resolving camera around? It looks good and that is all that matters to me.
I'll not tell the Kodak/Agfa story again but I still believe in pretty not accurate pictures.