It did. There's a scene where after a punch, Matt is covering his ears and clearly struggling with the sound.
I don't remember which ep. that was, sorry. One of the later ones, I think. (I'm sure someone else will be happy to help you out with that, if you need it.)
Re: Iron Fist's punch vs Matt's hearing/equilibrium
I don't remember which ep. that was, sorry. One of the later ones, I think. (I'm sure someone else will be happy to help you out with that, if you need it.)