Well, why do you think so many advocate for a tactical looking Batsuit? If not for realism, then what? No, they want it to look believable, even at the expense of a more stylistic design.
I think it's time they did something different with the cowl. How long are we gonna keep going back to the same methods of execution from 30 years ago? When the world around Batman is changing, why must he stay in the past? Several characters in the MCU have their eyes covered and they NEVER have a problem conveying emotion. Yes, they remove their helmets but Marvel didn't show the eyes through the mask for the sake of an actor's performance.
You can act without your eyes. And if we got an expressive cowl too, that would eliminate all need for the pupils altogether becuz as we've established, the pupils are not what shows emotion. It's the brow and eyelids